261421680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3643}}^1$

素因数の和:3695

約数の個数: 160

約数和(自身を含む): 910941696

約数和(自身を除く): 649520016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 104, 115, 120, 130, 138, 156, 184, 195, 208, 230, 240, 260, 276, 299, 312, 345, 368, 390, 460, 520, 552, 598, 624, 690, 780, 897, 920, 1040, 1104, 1196, 1380, 1495, 1560, 1794, 1840, 2392, 2760, 2990, 3120, 3588, 3643, 4485, 4784, 5520, 5980, 7176, 7286, 8970, 10929, 11960, 14352, 14572, 17940, 18215, 21858, 23920, 29144, 35880, 36430, 43716, 47359, 54645, 58288, 71760, 72860, 83789, 87432, 94718, 109290, 142077, 145720, 167578, 174864, 189436, 218580, 236795, 251367, 284154, 291440, 335156, 378872, 418945, 437160, 473590, 502734, 568308, 670312, 710385, 757744, 837890, 874320, 947180, 1005468, 1089257, 1136616, 1256835, 1340624, 1420770, 1675780, 1894360, 2010936, 2178514, 2273232, 2513670, 2841540, 3267771, 3351560, 3788720, 4021872, 4357028, 5027340, 5446285, 5683080, 6535542, 6703120, 8714056, 10054680, 10892570, 11366160, 13071084, 16338855, 17428112, 20109360, 21785140, 26142168, 32677710, 43570280, 52284336, 65355420, 87140560, 130710840, 261421680]

約数ペア:

[(1, 261421680), (2, 130710840), (3, 87140560), (4, 65355420), (5, 52284336), (6, 43570280), (8, 32677710), (10, 26142168), (12, 21785140), (13, 20109360), (15, 17428112), (16, 16338855), (20, 13071084), (23, 11366160), (24, 10892570), (26, 10054680), (30, 8714056), (39, 6703120), (40, 6535542), (46, 5683080), (48, 5446285), (52, 5027340), (60, 4357028), (65, 4021872), (69, 3788720), (78, 3351560), (80, 3267771), (92, 2841540), (104, 2513670), (115, 2273232), (120, 2178514), (130, 2010936), (138, 1894360), (156, 1675780), (184, 1420770), (195, 1340624), (208, 1256835), (230, 1136616), (240, 1089257), (260, 1005468), (276, 947180), (299, 874320), (312, 837890), (345, 757744), (368, 710385), (390, 670312), (460, 568308), (520, 502734), (552, 473590), (598, 437160), (624, 418945), (690, 378872), (780, 335156), (897, 291440), (920, 284154), (1040, 251367), (1104, 236795), (1196, 218580), (1380, 189436), (1495, 174864), (1560, 167578), (1794, 145720), (1840, 142077), (2392, 109290), (2760, 94718), (2990, 87432), (3120, 83789), (3588, 72860), (3643, 71760), (4485, 58288), (4784, 54645), (5520, 47359), (5980, 43716), (7176, 36430), (7286, 35880), (8970, 29144), (10929, 23920), (11960, 21858), (14352, 18215), (14572, 17940)]