51685420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{63031}}^1$

素因数の和:63081

約数の個数: 24

約数和(自身を含む): 111188448

約数和(自身を除く): 59503028

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 63031, 126062, 252124, 315155, 630310, 1260620, 2584271, 5168542, 10337084, 12921355, 25842710, 51685420]

約数ペア:

[(1, 51685420), (2, 25842710), (4, 12921355), (5, 10337084), (10, 5168542), (20, 2584271), (41, 1260620), (82, 630310), (164, 315155), (205, 252124), (410, 126062), (820, 63031)]