42687490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1129}}^1$

素因数の和:1354

約数の個数: 32

約数和(自身を含む): 81360000

約数和(自身を除く): 38672510

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 199, 398, 995, 1129, 1990, 2258, 3781, 5645, 7562, 11290, 18905, 21451, 37810, 42902, 107255, 214510, 224671, 449342, 1123355, 2246710, 4268749, 8537498, 21343745, 42687490]

約数ペア:

[(1, 42687490), (2, 21343745), (5, 8537498), (10, 4268749), (19, 2246710), (38, 1123355), (95, 449342), (190, 224671), (199, 214510), (398, 107255), (995, 42902), (1129, 37810), (1990, 21451), (2258, 18905), (3781, 11290), (5645, 7562)]