123403990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{2351}}^1$

素因数の和:2568

約数の個数: 32

約数和(自身を含む): 231154560

約数和(自身を除く): 107750570

約数列:

[1, 2, 5, 10, 29, 58, 145, 181, 290, 362, 905, 1810, 2351, 4702, 5249, 10498, 11755, 23510, 26245, 52490, 68179, 136358, 340895, 425531, 681790, 851062, 2127655, 4255310, 12340399, 24680798, 61701995, 123403990]

約数ペア:

[(1, 123403990), (2, 61701995), (5, 24680798), (10, 12340399), (29, 4255310), (58, 2127655), (145, 851062), (181, 681790), (290, 425531), (362, 340895), (905, 136358), (1810, 68179), (2351, 52490), (4702, 26245), (5249, 23510), (10498, 11755)]