645956464

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{401}}^1\times {\mathrm{1213}}^1$

素因数の和:1705

約数の個数: 40

約数和(自身を含む): 1270824912

約数和(自身を除く): 624868448

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 401, 664, 802, 1213, 1328, 1604, 2426, 3208, 4852, 6416, 9704, 19408, 33283, 66566, 100679, 133132, 201358, 266264, 402716, 486413, 532528, 805432, 972826, 1610864, 1945652, 3891304, 7782608, 40372279, 80744558, 161489116, 322978232, 645956464]

約数ペア:

[(1, 645956464), (2, 322978232), (4, 161489116), (8, 80744558), (16, 40372279), (83, 7782608), (166, 3891304), (332, 1945652), (401, 1610864), (664, 972826), (802, 805432), (1213, 532528), (1328, 486413), (1604, 402716), (2426, 266264), (3208, 201358), (4852, 133132), (6416, 100679), (9704, 66566), (19408, 33283)]