19215625

素因数分解:

$5^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 48

約数和(自身を含む): 28873152

約数和(自身を除く): 9657527

約数列:

[1, 5, 11, 13, 25, 43, 55, 65, 125, 143, 215, 275, 325, 473, 559, 625, 715, 1075, 1375, 1625, 2365, 2795, 3125, 3575, 5375, 6149, 6875, 8125, 11825, 13975, 17875, 26875, 30745, 34375, 40625, 59125, 69875, 89375, 134375, 153725, 295625, 349375, 446875, 768625, 1478125, 1746875, 3843125, 19215625]

約数ペア:

[(1, 19215625), (5, 3843125), (11, 1746875), (13, 1478125), (25, 768625), (43, 446875), (55, 349375), (65, 295625), (125, 153725), (143, 134375), (215, 89375), (275, 69875), (325, 59125), (473, 40625), (559, 34375), (625, 30745), (715, 26875), (1075, 17875), (1375, 13975), (1625, 11825), (2365, 8125), (2795, 6875), (3125, 6149), (3575, 5375)]