51907640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1021}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 123621120

約数和(自身を除く): 71713480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 620, 820, 1021, 1240, 1271, 1640, 2042, 2542, 4084, 5084, 5105, 6355, 8168, 10168, 10210, 12710, 20420, 25420, 31651, 40840, 41861, 50840, 63302, 83722, 126604, 158255, 167444, 209305, 253208, 316510, 334888, 418610, 633020, 837220, 1266040, 1297691, 1674440, 2595382, 5190764, 6488455, 10381528, 12976910, 25953820, 51907640]

約数ペア:

[(1, 51907640), (2, 25953820), (4, 12976910), (5, 10381528), (8, 6488455), (10, 5190764), (20, 2595382), (31, 1674440), (40, 1297691), (41, 1266040), (62, 837220), (82, 633020), (124, 418610), (155, 334888), (164, 316510), (205, 253208), (248, 209305), (310, 167444), (328, 158255), (410, 126604), (620, 83722), (820, 63302), (1021, 50840), (1240, 41861), (1271, 40840), (1640, 31651), (2042, 25420), (2542, 20420), (4084, 12710), (5084, 10210), (5105, 10168), (6355, 8168)]