4020625

素因数分解:

$5^4\times 7^1\times {\mathrm{919}}^1$

素因数の和:946

約数の個数: 20

約数和(自身を含む): 5748160

約数和(自身を除く): 1727535

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 919, 4375, 4595, 6433, 22975, 32165, 114875, 160825, 574375, 804125, 4020625]

約数ペア:

[(1, 4020625), (5, 804125), (7, 574375), (25, 160825), (35, 114875), (125, 32165), (175, 22975), (625, 6433), (875, 4595), (919, 4375)]