1620248864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{10789}}^1$

素因数の和:10850

約数の個数: 72

約数和(自身を含む): 3625893180

約数和(自身を除く): 2005644316

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 361, 416, 494, 608, 722, 988, 1444, 1976, 2888, 3952, 4693, 5776, 7904, 9386, 10789, 11552, 18772, 21578, 37544, 43156, 75088, 86312, 140257, 150176, 172624, 204991, 280514, 345248, 409982, 561028, 819964, 1122056, 1639928, 2244112, 2664883, 3279856, 3894829, 4488224, 5329766, 6559712, 7789658, 10659532, 15579316, 21319064, 31158632, 42638128, 50632777, 62317264, 85276256, 101265554, 124634528, 202531108, 405062216, 810124432, 1620248864]

約数ペア:

[(1, 1620248864), (2, 810124432), (4, 405062216), (8, 202531108), (13, 124634528), (16, 101265554), (19, 85276256), (26, 62317264), (32, 50632777), (38, 42638128), (52, 31158632), (76, 21319064), (104, 15579316), (152, 10659532), (208, 7789658), (247, 6559712), (304, 5329766), (361, 4488224), (416, 3894829), (494, 3279856), (608, 2664883), (722, 2244112), (988, 1639928), (1444, 1122056), (1976, 819964), (2888, 561028), (3952, 409982), (4693, 345248), (5776, 280514), (7904, 204991), (9386, 172624), (10789, 150176), (11552, 140257), (18772, 86312), (21578, 75088), (37544, 43156)]