740336920

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{43963}}^1$

素因数の和:44395

約数の個数: 32

約数和(自身を含む): 1669752720

約数和(自身を除く): 929415800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 43963, 87926, 175852, 219815, 351704, 439630, 879260, 1758520, 18508423, 37016846, 74033692, 92542115, 148067384, 185084230, 370168460, 740336920]

約数ペア:

[(1, 740336920), (2, 370168460), (4, 185084230), (5, 148067384), (8, 92542115), (10, 74033692), (20, 37016846), (40, 18508423), (421, 1758520), (842, 879260), (1684, 439630), (2105, 351704), (3368, 219815), (4210, 175852), (8420, 87926), (16840, 43963)]