19951875

素因数分解:

$3^2\times 5^4\times {\mathrm{3547}}^1$

素因数の和:3573

約数の個数: 30

約数和(自身を含む): 36022844

約数和(自身を除く): 16070969

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 3547, 5625, 10641, 17735, 31923, 53205, 88675, 159615, 266025, 443375, 798075, 1330125, 2216875, 3990375, 6650625, 19951875]

約数ペア:

[(1, 19951875), (3, 6650625), (5, 3990375), (9, 2216875), (15, 1330125), (25, 798075), (45, 443375), (75, 266025), (125, 159615), (225, 88675), (375, 53205), (625, 31923), (1125, 17735), (1875, 10641), (3547, 5625)]