20183995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{587}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 27313776

約数和(自身を除く): 7129781

約数列:

[1, 5, 13, 23, 65, 115, 299, 529, 587, 1495, 2645, 2935, 6877, 7631, 13501, 34385, 38155, 67505, 175513, 310523, 877565, 1552615, 4036799, 20183995]

約数ペア:

[(1, 20183995), (5, 4036799), (13, 1552615), (23, 877565), (65, 310523), (115, 175513), (299, 67505), (529, 38155), (587, 34385), (1495, 13501), (2645, 7631), (2935, 6877)]