20211598040

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{520381}}^1$

素因数の和:521363

約数の個数: 32

約数和(自身を含む): 45523017360

約数和(自身を除く): 25311419320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 3884, 4855, 7768, 9710, 19420, 38840, 520381, 1040762, 2081524, 2601905, 4163048, 5203810, 10407620, 20815240, 505289951, 1010579902, 2021159804, 2526449755, 4042319608, 5052899510, 10105799020, 20211598040]

約数ペア:

[(1, 20211598040), (2, 10105799020), (4, 5052899510), (5, 4042319608), (8, 2526449755), (10, 2021159804), (20, 1010579902), (40, 505289951), (971, 20815240), (1942, 10407620), (3884, 5203810), (4855, 4163048), (7768, 2601905), (9710, 2081524), (19420, 1040762), (38840, 520381)]