20572465

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 27408960

約数和(自身を除く): 6836495

約数列:

[1, 5, 17, 23, 85, 115, 289, 391, 619, 1445, 1955, 3095, 6647, 10523, 14237, 33235, 52615, 71185, 178891, 242029, 894455, 1210145, 4114493, 20572465]

約数ペア:

[(1, 20572465), (5, 4114493), (17, 1210145), (23, 894455), (85, 242029), (115, 178891), (289, 71185), (391, 52615), (619, 33235), (1445, 14237), (1955, 10523), (3095, 6647)]