20010625

素因数分解:

$5^4\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:438

約数の個数: 20

約数和(自身を含む): 25332516

約数和(自身を除く): 5321891

約数列:

[1, 5, 25, 101, 125, 317, 505, 625, 1585, 2525, 7925, 12625, 32017, 39625, 63125, 160085, 198125, 800425, 4002125, 20010625]

約数ペア:

[(1, 20010625), (5, 4002125), (25, 800425), (101, 198125), (125, 160085), (317, 63125), (505, 39625), (625, 32017), (1585, 12625), (2525, 7925)]