30910120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17971}}^1$

素因数の和:18025

約数の個数: 32

約数和(自身を含む): 71169120

約数和(自身を除く): 40259000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17971, 35942, 71884, 89855, 143768, 179710, 359420, 718840, 772753, 1545506, 3091012, 3863765, 6182024, 7727530, 15455060, 30910120]

約数ペア:

[(1, 30910120), (2, 15455060), (4, 7727530), (5, 6182024), (8, 3863765), (10, 3091012), (20, 1545506), (40, 772753), (43, 718840), (86, 359420), (172, 179710), (215, 143768), (344, 89855), (430, 71884), (860, 35942), (1720, 17971)]