20191020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{691}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 56732928

約数和(自身を除く): 36541908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 487, 691, 974, 1382, 1461, 1948, 2073, 2435, 2764, 2922, 3455, 4146, 4870, 5844, 6910, 7305, 8292, 9740, 10365, 13820, 14610, 20730, 29220, 41460, 336517, 673034, 1009551, 1346068, 1682585, 2019102, 3365170, 4038204, 5047755, 6730340, 10095510, 20191020]

約数ペア:

[(1, 20191020), (2, 10095510), (3, 6730340), (4, 5047755), (5, 4038204), (6, 3365170), (10, 2019102), (12, 1682585), (15, 1346068), (20, 1009551), (30, 673034), (60, 336517), (487, 41460), (691, 29220), (974, 20730), (1382, 14610), (1461, 13820), (1948, 10365), (2073, 9740), (2435, 8292), (2764, 7305), (2922, 6910), (3455, 5844), (4146, 4870)]