207870475

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{28771}}^1$

素因数の和:28815

約数の個数: 18

約数和(自身を含む): 273823124

約数和(自身を除く): 65952649

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 28771, 143855, 489107, 719275, 2445535, 8314819, 12227675, 41574095, 207870475]

約数ペア:

[(1, 207870475), (5, 41574095), (17, 12227675), (25, 8314819), (85, 2445535), (289, 719275), (425, 489107), (1445, 143855), (7225, 28771)]