256970160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:476

約数の個数: 240

約数和(自身を含む): 923869440

約数和(自身を除く): 666899280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 31, 36, 40, 45, 48, 58, 60, 62, 72, 80, 87, 90, 93, 116, 120, 124, 144, 145, 155, 174, 180, 186, 232, 240, 248, 261, 279, 290, 310, 348, 360, 372, 397, 435, 464, 465, 496, 522, 558, 580, 620, 696, 720, 744, 794, 870, 899, 930, 1044, 1116, 1160, 1191, 1240, 1305, 1392, 1395, 1488, 1588, 1740, 1798, 1860, 1985, 2088, 2232, 2320, 2382, 2480, 2610, 2697, 2790, 3176, 3480, 3573, 3596, 3720, 3970, 4176, 4464, 4495, 4764, 5220, 5394, 5580, 5955, 6352, 6960, 7146, 7192, 7440, 7940, 8091, 8990, 9528, 10440, 10788, 11160, 11513, 11910, 12307, 13485, 14292, 14384, 15880, 16182, 17865, 17980, 19056, 20880, 21576, 22320, 23026, 23820, 24614, 26970, 28584, 31760, 32364, 34539, 35730, 35960, 36921, 40455, 43152, 46052, 47640, 49228, 53940, 57168, 57565, 61535, 64728, 69078, 71460, 71920, 73842, 80910, 92104, 95280, 98456, 103617, 107880, 110763, 115130, 123070, 129456, 138156, 142920, 147684, 161820, 172695, 184208, 184605, 196912, 207234, 215760, 221526, 230260, 246140, 276312, 285840, 295368, 323640, 345390, 356903, 369210, 414468, 443052, 460520, 492280, 518085, 552624, 553815, 590736, 647280, 690780, 713806, 738420, 828936, 886104, 921040, 984560, 1036170, 1070709, 1107630, 1381560, 1427612, 1476840, 1657872, 1772208, 1784515, 2072340, 2141418, 2215260, 2763120, 2855224, 2953680, 3212127, 3569030, 4144680, 4282836, 4430520, 5353545, 5710448, 6424254, 7138060, 8289360, 8565672, 8861040, 10707090, 12848508, 14276120, 16060635, 17131344, 21414180, 25697016, 28552240, 32121270, 42828360, 51394032, 64242540, 85656720, 128485080, 256970160]

約数ペア:

[(1, 256970160), (2, 128485080), (3, 85656720), (4, 64242540), (5, 51394032), (6, 42828360), (8, 32121270), (9, 28552240), (10, 25697016), (12, 21414180), (15, 17131344), (16, 16060635), (18, 14276120), (20, 12848508), (24, 10707090), (29, 8861040), (30, 8565672), (31, 8289360), (36, 7138060), (40, 6424254), (45, 5710448), (48, 5353545), (58, 4430520), (60, 4282836), (62, 4144680), (72, 3569030), (80, 3212127), (87, 2953680), (90, 2855224), (93, 2763120), (116, 2215260), (120, 2141418), (124, 2072340), (144, 1784515), (145, 1772208), (155, 1657872), (174, 1476840), (180, 1427612), (186, 1381560), (232, 1107630), (240, 1070709), (248, 1036170), (261, 984560), (279, 921040), (290, 886104), (310, 828936), (348, 738420), (360, 713806), (372, 690780), (397, 647280), (435, 590736), (464, 553815), (465, 552624), (496, 518085), (522, 492280), (558, 460520), (580, 443052), (620, 414468), (696, 369210), (720, 356903), (744, 345390), (794, 323640), (870, 295368), (899, 285840), (930, 276312), (1044, 246140), (1116, 230260), (1160, 221526), (1191, 215760), (1240, 207234), (1305, 196912), (1392, 184605), (1395, 184208), (1488, 172695), (1588, 161820), (1740, 147684), (1798, 142920), (1860, 138156), (1985, 129456), (2088, 123070), (2232, 115130), (2320, 110763), (2382, 107880), (2480, 103617), (2610, 98456), (2697, 95280), (2790, 92104), (3176, 80910), (3480, 73842), (3573, 71920), (3596, 71460), (3720, 69078), (3970, 64728), (4176, 61535), (4464, 57565), (4495, 57168), (4764, 53940), (5220, 49228), (5394, 47640), (5580, 46052), (5955, 43152), (6352, 40455), (6960, 36921), (7146, 35960), (7192, 35730), (7440, 34539), (7940, 32364), (8091, 31760), (8990, 28584), (9528, 26970), (10440, 24614), (10788, 23820), (11160, 23026), (11513, 22320), (11910, 21576), (12307, 20880), (13485, 19056), (14292, 17980), (14384, 17865), (15880, 16182)]