15921220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113723}}^1$

素因数の和:113739

約数の個数: 24

約数和(自身を含む): 38211264

約数和(自身を除く): 22290044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 113723, 227446, 454892, 568615, 796061, 1137230, 1592122, 2274460, 3184244, 3980305, 7960610, 15921220]

約数ペア:

[(1, 15921220), (2, 7960610), (4, 3980305), (5, 3184244), (7, 2274460), (10, 1592122), (14, 1137230), (20, 796061), (28, 568615), (35, 454892), (70, 227446), (140, 113723)]