31510120

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9491}}^1$

素因数の和:9585

約数の個数: 32

約数和(自身を含む): 71759520

約数和(自身を除く): 40249400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 9491, 18982, 37964, 47455, 75928, 94910, 189820, 379640, 787753, 1575506, 3151012, 3938765, 6302024, 7877530, 15755060, 31510120]

約数ペア:

[(1, 31510120), (2, 15755060), (4, 7877530), (5, 6302024), (8, 3938765), (10, 3151012), (20, 1575506), (40, 787753), (83, 379640), (166, 189820), (332, 94910), (415, 75928), (664, 47455), (830, 37964), (1660, 18982), (3320, 9491)]