20598500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3169}}^1$

素因数の和:3201

約数の個数: 48

約数和(自身を含む): 48462960

約数和(自身を除く): 27864460

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3169, 3250, 6338, 6500, 12676, 15845, 31690, 41197, 63380, 79225, 82394, 158450, 164788, 205985, 316900, 396125, 411970, 792250, 823940, 1029925, 1584500, 2059850, 4119700, 5149625, 10299250, 20598500]

約数ペア:

[(1, 20598500), (2, 10299250), (4, 5149625), (5, 4119700), (10, 2059850), (13, 1584500), (20, 1029925), (25, 823940), (26, 792250), (50, 411970), (52, 396125), (65, 316900), (100, 205985), (125, 164788), (130, 158450), (250, 82394), (260, 79225), (325, 63380), (500, 41197), (650, 31690), (1300, 15845), (1625, 12676), (3169, 6500), (3250, 6338)]