15216625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:226

約数の個数: 32

約数和(自身を含む): 20592000

約数和(自身を除く): 5375375

約数列:

[1, 5, 19, 25, 43, 95, 125, 149, 215, 475, 745, 817, 1075, 2375, 2831, 3725, 4085, 5375, 6407, 14155, 18625, 20425, 32035, 70775, 102125, 121733, 160175, 353875, 608665, 800875, 3043325, 15216625]

約数ペア:

[(1, 15216625), (5, 3043325), (19, 800875), (25, 608665), (43, 353875), (95, 160175), (125, 121733), (149, 102125), (215, 70775), (475, 32035), (745, 20425), (817, 18625), (1075, 14155), (2375, 6407), (2831, 5375), (3725, 4085)]