31807960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18493}}^1$

素因数の和:18547

約数の個数: 32

約数和(自身を含む): 73236240

約数和(自身を除く): 41428280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18493, 36986, 73972, 92465, 147944, 184930, 369860, 739720, 795199, 1590398, 3180796, 3975995, 6361592, 7951990, 15903980, 31807960]

約数ペア:

[(1, 31807960), (2, 15903980), (4, 7951990), (5, 6361592), (8, 3975995), (10, 3180796), (20, 1590398), (40, 795199), (43, 739720), (86, 369860), (172, 184930), (215, 147944), (344, 92465), (430, 73972), (860, 36986), (1720, 18493)]