20317950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:458

約数の個数: 72

約数和(自身を含む): 55120728

約数和(自身を除く): 34802778

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 163, 225, 277, 326, 450, 489, 554, 815, 831, 978, 1385, 1467, 1630, 1662, 2445, 2493, 2770, 2934, 4075, 4155, 4890, 4986, 6925, 7335, 8150, 8310, 12225, 12465, 13850, 14670, 20775, 24450, 24930, 36675, 41550, 45151, 62325, 73350, 90302, 124650, 135453, 225755, 270906, 406359, 451510, 677265, 812718, 1128775, 1354530, 2031795, 2257550, 3386325, 4063590, 6772650, 10158975, 20317950]

約数ペア:

[(1, 20317950), (2, 10158975), (3, 6772650), (5, 4063590), (6, 3386325), (9, 2257550), (10, 2031795), (15, 1354530), (18, 1128775), (25, 812718), (30, 677265), (45, 451510), (50, 406359), (75, 270906), (90, 225755), (150, 135453), (163, 124650), (225, 90302), (277, 73350), (326, 62325), (450, 45151), (489, 41550), (554, 36675), (815, 24930), (831, 24450), (978, 20775), (1385, 14670), (1467, 13850), (1630, 12465), (1662, 12225), (2445, 8310), (2493, 8150), (2770, 7335), (2934, 6925), (4075, 4986), (4155, 4890)]