61987220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{42457}}^1$

素因数の和:42539

約数の個数: 24

約数和(自身を含む): 131959464

約数和(自身を除く): 69972244

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 42457, 84914, 169828, 212285, 424570, 849140, 3099361, 6198722, 12397444, 15496805, 30993610, 61987220]

約数ペア:

[(1, 61987220), (2, 30993610), (4, 15496805), (5, 12397444), (10, 6198722), (20, 3099361), (73, 849140), (146, 424570), (292, 212285), (365, 169828), (730, 84914), (1460, 42457)]