12156920

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{971}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 27468720

約数和(自身を除く): 15311800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 971, 1252, 1565, 1942, 2504, 3130, 3884, 4855, 6260, 7768, 9710, 12520, 19420, 38840, 303923, 607846, 1215692, 1519615, 2431384, 3039230, 6078460, 12156920]

約数ペア:

[(1, 12156920), (2, 6078460), (4, 3039230), (5, 2431384), (8, 1519615), (10, 1215692), (20, 607846), (40, 303923), (313, 38840), (626, 19420), (971, 12520), (1252, 9710), (1565, 7768), (1942, 6260), (2504, 4855), (3130, 3884)]