31985120

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4649}}^1$

素因数の和:4707

約数の個数: 48

約数和(自身を含む): 77338800

約数和(自身を除く): 45353680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 4649, 6880, 9298, 18596, 23245, 37192, 46490, 74384, 92980, 148768, 185960, 199907, 371920, 399814, 743840, 799628, 999535, 1599256, 1999070, 3198512, 3998140, 6397024, 7996280, 15992560, 31985120]

約数ペア:

[(1, 31985120), (2, 15992560), (4, 7996280), (5, 6397024), (8, 3998140), (10, 3198512), (16, 1999070), (20, 1599256), (32, 999535), (40, 799628), (43, 743840), (80, 399814), (86, 371920), (160, 199907), (172, 185960), (215, 148768), (344, 92980), (430, 74384), (688, 46490), (860, 37192), (1376, 23245), (1720, 18596), (3440, 9298), (4649, 6880)]