9808840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5981}}^1$

素因数の和:6033

約数の個数: 32

約数和(自身を含む): 22611960

約数和(自身を除く): 12803120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5981, 11962, 23924, 29905, 47848, 59810, 119620, 239240, 245221, 490442, 980884, 1226105, 1961768, 2452210, 4904420, 9808840]

約数ペア:

[(1, 9808840), (2, 4904420), (4, 2452210), (5, 1961768), (8, 1226105), (10, 980884), (20, 490442), (40, 245221), (41, 239240), (82, 119620), (164, 59810), (205, 47848), (328, 29905), (410, 23924), (820, 11962), (1640, 5981)]