201517880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{70957}}^1$

素因数の和:71039

約数の個数: 32

約数和(自身を含む): 459807840

約数和(自身を除く): 258289960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 70957, 141914, 283828, 354785, 567656, 709570, 1419140, 2838280, 5037947, 10075894, 20151788, 25189735, 40303576, 50379470, 100758940, 201517880]

約数ペア:

[(1, 201517880), (2, 100758940), (4, 50379470), (5, 40303576), (8, 25189735), (10, 20151788), (20, 10075894), (40, 5037947), (71, 2838280), (142, 1419140), (284, 709570), (355, 567656), (568, 354785), (710, 283828), (1420, 141914), (2840, 70957)]