12996920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4451}}^1$

素因数の和:4535

約数の個数: 32

約数和(自身を含む): 29650320

約数和(自身を除く): 16653400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 4451, 8902, 17804, 22255, 35608, 44510, 89020, 178040, 324923, 649846, 1299692, 1624615, 2599384, 3249230, 6498460, 12996920]

約数ペア:

[(1, 12996920), (2, 6498460), (4, 3249230), (5, 2599384), (8, 1624615), (10, 1299692), (20, 649846), (40, 324923), (73, 178040), (146, 89020), (292, 44510), (365, 35608), (584, 22255), (730, 17804), (1460, 8902), (2920, 4451)]