256801440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3323}}^1$

素因数の和:3371

約数の個数: 192

約数和(自身を含む): 964970496

約数和(自身を除く): 708169056

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 140, 160, 161, 168, 184, 210, 224, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 480, 483, 552, 560, 644, 672, 690, 736, 805, 840, 920, 966, 1104, 1120, 1288, 1380, 1610, 1680, 1840, 1932, 2208, 2415, 2576, 2760, 3220, 3323, 3360, 3680, 3864, 4830, 5152, 5520, 6440, 6646, 7728, 9660, 9969, 11040, 12880, 13292, 15456, 16615, 19320, 19938, 23261, 25760, 26584, 33230, 38640, 39876, 46522, 49845, 53168, 66460, 69783, 76429, 77280, 79752, 93044, 99690, 106336, 116305, 132920, 139566, 152858, 159504, 186088, 199380, 229287, 232610, 265840, 279132, 305716, 319008, 348915, 372176, 382145, 398760, 458574, 465220, 531680, 535003, 558264, 611432, 697830, 744352, 764290, 797520, 917148, 930440, 1070006, 1116528, 1146435, 1222864, 1395660, 1528580, 1595040, 1605009, 1834296, 1860880, 2140012, 2233056, 2292870, 2445728, 2675015, 2791320, 3057160, 3210018, 3668592, 3721760, 4280024, 4585740, 5350030, 5582640, 6114320, 6420036, 7337184, 8025045, 8560048, 9171480, 10700060, 11165280, 12228640, 12840072, 16050090, 17120096, 18342960, 21400120, 25680144, 32100180, 36685920, 42800240, 51360288, 64200360, 85600480, 128400720, 256801440]

約数ペア:

[(1, 256801440), (2, 128400720), (3, 85600480), (4, 64200360), (5, 51360288), (6, 42800240), (7, 36685920), (8, 32100180), (10, 25680144), (12, 21400120), (14, 18342960), (15, 17120096), (16, 16050090), (20, 12840072), (21, 12228640), (23, 11165280), (24, 10700060), (28, 9171480), (30, 8560048), (32, 8025045), (35, 7337184), (40, 6420036), (42, 6114320), (46, 5582640), (48, 5350030), (56, 4585740), (60, 4280024), (69, 3721760), (70, 3668592), (80, 3210018), (84, 3057160), (92, 2791320), (96, 2675015), (105, 2445728), (112, 2292870), (115, 2233056), (120, 2140012), (138, 1860880), (140, 1834296), (160, 1605009), (161, 1595040), (168, 1528580), (184, 1395660), (210, 1222864), (224, 1146435), (230, 1116528), (240, 1070006), (276, 930440), (280, 917148), (322, 797520), (336, 764290), (345, 744352), (368, 697830), (420, 611432), (460, 558264), (480, 535003), (483, 531680), (552, 465220), (560, 458574), (644, 398760), (672, 382145), (690, 372176), (736, 348915), (805, 319008), (840, 305716), (920, 279132), (966, 265840), (1104, 232610), (1120, 229287), (1288, 199380), (1380, 186088), (1610, 159504), (1680, 152858), (1840, 139566), (1932, 132920), (2208, 116305), (2415, 106336), (2576, 99690), (2760, 93044), (3220, 79752), (3323, 77280), (3360, 76429), (3680, 69783), (3864, 66460), (4830, 53168), (5152, 49845), (5520, 46522), (6440, 39876), (6646, 38640), (7728, 33230), (9660, 26584), (9969, 25760), (11040, 23261), (12880, 19938), (13292, 19320), (15456, 16615)]