25164560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 61662720

約数和(自身を除く): 36498160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 139, 146, 155, 248, 278, 292, 310, 365, 496, 556, 584, 620, 695, 730, 1112, 1168, 1240, 1390, 1460, 2224, 2263, 2480, 2780, 2920, 4309, 4526, 5560, 5840, 8618, 9052, 10147, 11120, 11315, 17236, 18104, 20294, 21545, 22630, 34472, 36208, 40588, 43090, 45260, 50735, 68944, 81176, 86180, 90520, 101470, 162352, 172360, 181040, 202940, 314557, 344720, 405880, 629114, 811760, 1258228, 1572785, 2516456, 3145570, 5032912, 6291140, 12582280, 25164560]

約数ペア:

[(1, 25164560), (2, 12582280), (4, 6291140), (5, 5032912), (8, 3145570), (10, 2516456), (16, 1572785), (20, 1258228), (31, 811760), (40, 629114), (62, 405880), (73, 344720), (80, 314557), (124, 202940), (139, 181040), (146, 172360), (155, 162352), (248, 101470), (278, 90520), (292, 86180), (310, 81176), (365, 68944), (496, 50735), (556, 45260), (584, 43090), (620, 40588), (695, 36208), (730, 34472), (1112, 22630), (1168, 21545), (1240, 20294), (1390, 18104), (1460, 17236), (2224, 11315), (2263, 11120), (2480, 10147), (2780, 9052), (2920, 8618), (4309, 5840), (4526, 5560)]