15998480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6451}}^1$

素因数の和:6495

約数の個数: 40

約数和(自身を含む): 38402304

約数和(自身を除く): 22403824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 6451, 12902, 25804, 32255, 51608, 64510, 103216, 129020, 199981, 258040, 399962, 516080, 799924, 999905, 1599848, 1999810, 3199696, 3999620, 7999240, 15998480]

約数ペア:

[(1, 15998480), (2, 7999240), (4, 3999620), (5, 3199696), (8, 1999810), (10, 1599848), (16, 999905), (20, 799924), (31, 516080), (40, 399962), (62, 258040), (80, 199981), (124, 129020), (155, 103216), (248, 64510), (310, 51608), (496, 32255), (620, 25804), (1240, 12902), (2480, 6451)]