25953820

素因数分解:

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

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 57689856

約数和(自身を除く): 31736036

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1021, 1271, 2042, 2542, 4084, 5084, 5105, 6355, 10210, 12710, 20420, 25420, 31651, 41861, 63302, 83722, 126604, 158255, 167444, 209305, 316510, 418610, 633020, 837220, 1297691, 2595382, 5190764, 6488455, 12976910, 25953820]

約数ペア:

[(1, 25953820), (2, 12976910), (4, 6488455), (5, 5190764), (10, 2595382), (20, 1297691), (31, 837220), (41, 633020), (62, 418610), (82, 316510), (124, 209305), (155, 167444), (164, 158255), (205, 126604), (310, 83722), (410, 63302), (620, 41861), (820, 31651), (1021, 25420), (1271, 20420), (2042, 12710), (2542, 10210), (4084, 6355), (5084, 5105)]