20219875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 28409472

約数和(自身を除く): 8189597

約数列:

[1, 5, 13, 23, 25, 65, 115, 125, 299, 325, 541, 575, 1495, 1625, 2705, 2875, 7033, 7475, 12443, 13525, 35165, 37375, 62215, 67625, 161759, 175825, 311075, 808795, 879125, 1555375, 4043975, 20219875]

約数ペア:

[(1, 20219875), (5, 4043975), (13, 1555375), (23, 879125), (25, 808795), (65, 311075), (115, 175825), (125, 161759), (299, 67625), (325, 62215), (541, 37375), (575, 35165), (1495, 13525), (1625, 12443), (2705, 7475), (2875, 7033)]