81711710

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 149299200

約数和(自身を除く): 67587490

約数列:

[1, 2, 5, 10, 179, 191, 239, 358, 382, 478, 895, 955, 1195, 1790, 1910, 2390, 34189, 42781, 45649, 68378, 85562, 91298, 170945, 213905, 228245, 341890, 427810, 456490, 8171171, 16342342, 40855855, 81711710]

約数ペア:

[(1, 81711710), (2, 40855855), (5, 16342342), (10, 8171171), (179, 456490), (191, 427810), (239, 341890), (358, 228245), (382, 213905), (478, 170945), (895, 91298), (955, 85562), (1195, 68378), (1790, 45649), (1910, 42781), (2390, 34189)]