12649960

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1381}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 28607400

約数和(自身を除く): 15957440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1381, 1832, 2290, 2762, 4580, 5524, 6905, 9160, 11048, 13810, 27620, 55240, 316249, 632498, 1264996, 1581245, 2529992, 3162490, 6324980, 12649960]

約数ペア:

[(1, 12649960), (2, 6324980), (4, 3162490), (5, 2529992), (8, 1581245), (10, 1264996), (20, 632498), (40, 316249), (229, 55240), (458, 27620), (916, 13810), (1145, 11048), (1381, 9160), (1832, 6905), (2290, 5524), (2762, 4580)]