201751780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127691}}^1$

素因数の和:127779

約数の個数: 24

約数和(自身を含む): 429045120

約数和(自身を除く): 227293340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 127691, 255382, 510764, 638455, 1276910, 2553820, 10087589, 20175178, 40350356, 50437945, 100875890, 201751780]

約数ペア:

[(1, 201751780), (2, 100875890), (4, 50437945), (5, 40350356), (10, 20175178), (20, 10087589), (79, 2553820), (158, 1276910), (316, 638455), (395, 510764), (790, 255382), (1580, 127691)]