31018840

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2113}}^1$

素因数の和:2491

約数の個数: 32

約数和(自身を含む): 70015680

約数和(自身を除く): 38996840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1468, 1835, 2113, 2936, 3670, 4226, 7340, 8452, 10565, 14680, 16904, 21130, 42260, 84520, 775471, 1550942, 3101884, 3877355, 6203768, 7754710, 15509420, 31018840]

約数ペア:

[(1, 31018840), (2, 15509420), (4, 7754710), (5, 6203768), (8, 3877355), (10, 3101884), (20, 1550942), (40, 775471), (367, 84520), (734, 42260), (1468, 21130), (1835, 16904), (2113, 14680), (2936, 10565), (3670, 8452), (4226, 7340)]