125438680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{76487}}^1$

素因数の和:76539

約数の個数: 32

約数和(自身を含む): 289124640

約数和(自身を除く): 163685960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 76487, 152974, 305948, 382435, 611896, 764870, 1529740, 3059480, 3135967, 6271934, 12543868, 15679835, 25087736, 31359670, 62719340, 125438680]

約数ペア:

[(1, 125438680), (2, 62719340), (4, 31359670), (5, 25087736), (8, 15679835), (10, 12543868), (20, 6271934), (40, 3135967), (41, 3059480), (82, 1529740), (164, 764870), (205, 611896), (328, 382435), (410, 305948), (820, 152974), (1640, 76487)]