51413680

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2689}}^1$

素因数の和:2941

約数の個数: 40

約数和(自身を含む): 120081600

約数和(自身を除く): 68667920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 2689, 3824, 4780, 5378, 9560, 10756, 13445, 19120, 21512, 26890, 43024, 53780, 107560, 215120, 642671, 1285342, 2570684, 3213355, 5141368, 6426710, 10282736, 12853420, 25706840, 51413680]

約数ペア:

[(1, 51413680), (2, 25706840), (4, 12853420), (5, 10282736), (8, 6426710), (10, 5141368), (16, 3213355), (20, 2570684), (40, 1285342), (80, 642671), (239, 215120), (478, 107560), (956, 53780), (1195, 43024), (1912, 26890), (2390, 21512), (2689, 19120), (3824, 13445), (4780, 10756), (5378, 9560)]