20143975

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 26596512

約数和(自身を除く): 6452537

約数列:

[1, 5, 23, 25, 53, 115, 265, 575, 661, 1219, 1325, 3305, 6095, 15203, 16525, 30475, 35033, 76015, 175165, 380075, 805759, 875825, 4028795, 20143975]

約数ペア:

[(1, 20143975), (5, 4028795), (23, 875825), (25, 805759), (53, 380075), (115, 175165), (265, 76015), (575, 35033), (661, 30475), (1219, 16525), (1325, 15203), (3305, 6095)]