12742120

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2029}}^1$

素因数の和:2197

約数の個数: 32

約数和(自身を含む): 28866600

約数和(自身を除く): 16124480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2029, 3140, 4058, 6280, 8116, 10145, 16232, 20290, 40580, 81160, 318553, 637106, 1274212, 1592765, 2548424, 3185530, 6371060, 12742120]

約数ペア:

[(1, 12742120), (2, 6371060), (4, 3185530), (5, 2548424), (8, 1592765), (10, 1274212), (20, 637106), (40, 318553), (157, 81160), (314, 40580), (628, 20290), (785, 16232), (1256, 10145), (1570, 8116), (2029, 6280), (3140, 4058)]