256398480

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:455

約数の個数: 320

約数和(自身を含む): 994936320

約数和(自身を除く): 738537840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 23, 24, 26, 27, 30, 36, 39, 40, 45, 46, 48, 52, 54, 60, 65, 69, 72, 78, 80, 90, 92, 104, 108, 115, 117, 120, 130, 135, 138, 144, 156, 180, 184, 195, 207, 208, 216, 230, 234, 240, 260, 270, 276, 299, 312, 345, 351, 360, 368, 390, 397, 414, 432, 460, 468, 520, 540, 552, 585, 598, 621, 624, 690, 702, 720, 780, 794, 828, 897, 920, 936, 1035, 1040, 1080, 1104, 1170, 1191, 1196, 1242, 1380, 1404, 1495, 1560, 1588, 1656, 1755, 1794, 1840, 1872, 1985, 2070, 2160, 2340, 2382, 2392, 2484, 2691, 2760, 2808, 2990, 3105, 3120, 3176, 3312, 3510, 3573, 3588, 3970, 4140, 4485, 4680, 4764, 4784, 4968, 5161, 5382, 5520, 5616, 5955, 5980, 6210, 6352, 7020, 7146, 7176, 7940, 8073, 8280, 8970, 9131, 9360, 9528, 9936, 10322, 10719, 10764, 11910, 11960, 12420, 13455, 14040, 14292, 14352, 15483, 15880, 16146, 16560, 17865, 17940, 18262, 19056, 20644, 21438, 21528, 23820, 23920, 24840, 25805, 26910, 27393, 28080, 28584, 30966, 31760, 32292, 35730, 35880, 36524, 40365, 41288, 42876, 43056, 45655, 46449, 47640, 49680, 51610, 53595, 53820, 54786, 57168, 61932, 64584, 71460, 71760, 73048, 77415, 80730, 82179, 82576, 85752, 91310, 92898, 95280, 103220, 107190, 107640, 109572, 118703, 123864, 129168, 136965, 139347, 142920, 146096, 154830, 161460, 164358, 171504, 182620, 185796, 206440, 214380, 215280, 219144, 232245, 237406, 246537, 247728, 273930, 278694, 285840, 309660, 322920, 328716, 356109, 365240, 371592, 410895, 412880, 428760, 438288, 464490, 474812, 493074, 547860, 557388, 593515, 619320, 645840, 657432, 696735, 712218, 730480, 743184, 821790, 857520, 928980, 949624, 986148, 1068327, 1095720, 1114776, 1187030, 1232685, 1238640, 1314864, 1393470, 1424436, 1643580, 1780545, 1857960, 1899248, 1972296, 2136654, 2191440, 2229552, 2374060, 2465370, 2786940, 2848872, 3204981, 3287160, 3561090, 3715920, 3944592, 4273308, 4748120, 4930740, 5341635, 5573880, 5697744, 6409962, 6574320, 7122180, 8546616, 9496240, 9861480, 10683270, 11147760, 12819924, 14244360, 16024905, 17093232, 19722960, 21366540, 25639848, 28488720, 32049810, 42733080, 51279696, 64099620, 85466160, 128199240, 256398480]

約数ペア:

[(1, 256398480), (2, 128199240), (3, 85466160), (4, 64099620), (5, 51279696), (6, 42733080), (8, 32049810), (9, 28488720), (10, 25639848), (12, 21366540), (13, 19722960), (15, 17093232), (16, 16024905), (18, 14244360), (20, 12819924), (23, 11147760), (24, 10683270), (26, 9861480), (27, 9496240), (30, 8546616), (36, 7122180), (39, 6574320), (40, 6409962), (45, 5697744), (46, 5573880), (48, 5341635), (52, 4930740), (54, 4748120), (60, 4273308), (65, 3944592), (69, 3715920), (72, 3561090), (78, 3287160), (80, 3204981), (90, 2848872), (92, 2786940), (104, 2465370), (108, 2374060), (115, 2229552), (117, 2191440), (120, 2136654), (130, 1972296), (135, 1899248), (138, 1857960), (144, 1780545), (156, 1643580), (180, 1424436), (184, 1393470), (195, 1314864), (207, 1238640), (208, 1232685), (216, 1187030), (230, 1114776), (234, 1095720), (240, 1068327), (260, 986148), (270, 949624), (276, 928980), (299, 857520), (312, 821790), (345, 743184), (351, 730480), (360, 712218), (368, 696735), (390, 657432), (397, 645840), (414, 619320), (432, 593515), (460, 557388), (468, 547860), (520, 493074), (540, 474812), (552, 464490), (585, 438288), (598, 428760), (621, 412880), (624, 410895), (690, 371592), (702, 365240), (720, 356109), (780, 328716), (794, 322920), (828, 309660), (897, 285840), (920, 278694), (936, 273930), (1035, 247728), (1040, 246537), (1080, 237406), (1104, 232245), (1170, 219144), (1191, 215280), (1196, 214380), (1242, 206440), (1380, 185796), (1404, 182620), (1495, 171504), (1560, 164358), (1588, 161460), (1656, 154830), (1755, 146096), (1794, 142920), (1840, 139347), (1872, 136965), (1985, 129168), (2070, 123864), (2160, 118703), (2340, 109572), (2382, 107640), (2392, 107190), (2484, 103220), (2691, 95280), (2760, 92898), (2808, 91310), (2990, 85752), (3105, 82576), (3120, 82179), (3176, 80730), (3312, 77415), (3510, 73048), (3573, 71760), (3588, 71460), (3970, 64584), (4140, 61932), (4485, 57168), (4680, 54786), (4764, 53820), (4784, 53595), (4968, 51610), (5161, 49680), (5382, 47640), (5520, 46449), (5616, 45655), (5955, 43056), (5980, 42876), (6210, 41288), (6352, 40365), (7020, 36524), (7146, 35880), (7176, 35730), (7940, 32292), (8073, 31760), (8280, 30966), (8970, 28584), (9131, 28080), (9360, 27393), (9528, 26910), (9936, 25805), (10322, 24840), (10719, 23920), (10764, 23820), (11910, 21528), (11960, 21438), (12420, 20644), (13455, 19056), (14040, 18262), (14292, 17940), (14352, 17865), (15483, 16560), (15880, 16146)]