64260520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1787}}^1$

素因数の和:1858

約数の個数: 64

約数和(自身を含む): 154483200

約数和(自身を除く): 90222680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1787, 1798, 3574, 3596, 4495, 7148, 7192, 8935, 8990, 14296, 17870, 17980, 35740, 35960, 51823, 55397, 71480, 103646, 110794, 207292, 221588, 259115, 276985, 414584, 443176, 518230, 553970, 1036460, 1107940, 1606513, 2072920, 2215880, 3213026, 6426052, 8032565, 12852104, 16065130, 32130260, 64260520]

約数ペア:

[(1, 64260520), (2, 32130260), (4, 16065130), (5, 12852104), (8, 8032565), (10, 6426052), (20, 3213026), (29, 2215880), (31, 2072920), (40, 1606513), (58, 1107940), (62, 1036460), (116, 553970), (124, 518230), (145, 443176), (155, 414584), (232, 276985), (248, 259115), (290, 221588), (310, 207292), (580, 110794), (620, 103646), (899, 71480), (1160, 55397), (1240, 51823), (1787, 35960), (1798, 35740), (3574, 17980), (3596, 17870), (4495, 14296), (7148, 8990), (7192, 8935)]