20584890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{691}}^1$

素因数の和:1035

約数の個数: 48

約数和(自身を含む): 53760096

約数和(自身を除く): 33175206

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 331, 662, 691, 993, 1382, 1655, 1986, 2073, 2979, 3310, 3455, 4146, 4965, 5958, 6219, 6910, 9930, 10365, 12438, 14895, 20730, 29790, 31095, 62190, 228721, 457442, 686163, 1143605, 1372326, 2058489, 2287210, 3430815, 4116978, 6861630, 10292445, 20584890]

約数ペア:

[(1, 20584890), (2, 10292445), (3, 6861630), (5, 4116978), (6, 3430815), (9, 2287210), (10, 2058489), (15, 1372326), (18, 1143605), (30, 686163), (45, 457442), (90, 228721), (331, 62190), (662, 31095), (691, 29790), (993, 20730), (1382, 14895), (1655, 12438), (1986, 10365), (2073, 9930), (2979, 6910), (3310, 6219), (3455, 5958), (4146, 4965)]