421796140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{197101}}^1$

素因数の和:197217

約数の個数: 24

約数和(自身を含む): 894054672

約数和(自身を除く): 472258532

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 197101, 394202, 788404, 985505, 1971010, 3942020, 21089807, 42179614, 84359228, 105449035, 210898070, 421796140]

約数ペア:

[(1, 421796140), (2, 210898070), (4, 105449035), (5, 84359228), (10, 42179614), (20, 21089807), (107, 3942020), (214, 1971010), (428, 985505), (535, 788404), (1070, 394202), (2140, 197101)]