20430850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^3\times {\mathrm{307}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 41934816

約数和(自身を除く): 21503966

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 307, 550, 605, 614, 1210, 1331, 1535, 2662, 3025, 3070, 3377, 6050, 6655, 6754, 7675, 13310, 15350, 16885, 33275, 33770, 37147, 66550, 74294, 84425, 168850, 185735, 371470, 408617, 817234, 928675, 1857350, 2043085, 4086170, 10215425, 20430850]

約数ペア:

[(1, 20430850), (2, 10215425), (5, 4086170), (10, 2043085), (11, 1857350), (22, 928675), (25, 817234), (50, 408617), (55, 371470), (110, 185735), (121, 168850), (242, 84425), (275, 74294), (307, 66550), (550, 37147), (605, 33770), (614, 33275), (1210, 16885), (1331, 15350), (1535, 13310), (2662, 7675), (3025, 6754), (3070, 6655), (3377, 6050)]