20383780

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4229}}^1$

素因数の和:4479

約数の個数: 24

約数和(自身を含む): 42993720

約数和(自身を除く): 22609940

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4229, 4820, 8458, 16916, 21145, 42290, 84580, 1019189, 2038378, 4076756, 5095945, 10191890, 20383780]

約数ペア:

[(1, 20383780), (2, 10191890), (4, 5095945), (5, 4076756), (10, 2038378), (20, 1019189), (241, 84580), (482, 42290), (964, 21145), (1205, 16916), (2410, 8458), (4229, 4820)]