7999240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6451}}^1$

素因数の和:6493

約数の個数: 32

約数和(自身を含む): 18581760

約数和(自身を除く): 10582520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 6451, 12902, 25804, 32255, 51608, 64510, 129020, 199981, 258040, 399962, 799924, 999905, 1599848, 1999810, 3999620, 7999240]

約数ペア:

[(1, 7999240), (2, 3999620), (4, 1999810), (5, 1599848), (8, 999905), (10, 799924), (20, 399962), (31, 258040), (40, 199981), (62, 129020), (124, 64510), (155, 51608), (248, 32255), (310, 25804), (620, 12902), (1240, 6451)]