18284920

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1489}}^1$

素因数の和:1807

約数の個数: 32

約数和(自身を含む): 41302800

約数和(自身を除く): 23017880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1489, 1535, 2456, 2978, 3070, 5956, 6140, 7445, 11912, 12280, 14890, 29780, 59560, 457123, 914246, 1828492, 2285615, 3656984, 4571230, 9142460, 18284920]

約数ペア:

[(1, 18284920), (2, 9142460), (4, 4571230), (5, 3656984), (8, 2285615), (10, 1828492), (20, 914246), (40, 457123), (307, 59560), (614, 29780), (1228, 14890), (1489, 12280), (1535, 11912), (2456, 7445), (2978, 6140), (3070, 5956)]