64137640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1459}}^1$

素因数の和:1634

約数の個数: 64

約数和(自身を含む): 166089600

約数和(自身を除く): 101951960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1459, 1570, 2198, 2918, 3140, 4396, 5495, 5836, 6280, 7295, 8792, 10213, 10990, 11672, 14590, 20426, 21980, 29180, 40852, 43960, 51065, 58360, 81704, 102130, 204260, 229063, 408520, 458126, 916252, 1145315, 1603441, 1832504, 2290630, 3206882, 4581260, 6413764, 8017205, 9162520, 12827528, 16034410, 32068820, 64137640]

約数ペア:

[(1, 64137640), (2, 32068820), (4, 16034410), (5, 12827528), (7, 9162520), (8, 8017205), (10, 6413764), (14, 4581260), (20, 3206882), (28, 2290630), (35, 1832504), (40, 1603441), (56, 1145315), (70, 916252), (140, 458126), (157, 408520), (280, 229063), (314, 204260), (628, 102130), (785, 81704), (1099, 58360), (1256, 51065), (1459, 43960), (1570, 40852), (2198, 29180), (2918, 21980), (3140, 20426), (4396, 14590), (5495, 11672), (5836, 10990), (6280, 10213), (7295, 8792)]