19005820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 42255360

約数和(自身を除く): 23249540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 79, 92, 115, 158, 230, 316, 395, 460, 523, 790, 1046, 1580, 1817, 2092, 2615, 3634, 5230, 7268, 9085, 10460, 12029, 18170, 24058, 36340, 41317, 48116, 60145, 82634, 120290, 165268, 206585, 240580, 413170, 826340, 950291, 1900582, 3801164, 4751455, 9502910, 19005820]

約数ペア:

[(1, 19005820), (2, 9502910), (4, 4751455), (5, 3801164), (10, 1900582), (20, 950291), (23, 826340), (46, 413170), (79, 240580), (92, 206585), (115, 165268), (158, 120290), (230, 82634), (316, 60145), (395, 48116), (460, 41317), (523, 36340), (790, 24058), (1046, 18170), (1580, 12029), (1817, 10460), (2092, 9085), (2615, 7268), (3634, 5230)]