68612920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55333}}^1$

素因数の和:55375

約数の個数: 32

約数和(自身を含む): 159361920

約数和(自身を除く): 90749000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 55333, 110666, 221332, 276665, 442664, 553330, 1106660, 1715323, 2213320, 3430646, 6861292, 8576615, 13722584, 17153230, 34306460, 68612920]

約数ペア:

[(1, 68612920), (2, 34306460), (4, 17153230), (5, 13722584), (8, 8576615), (10, 6861292), (20, 3430646), (31, 2213320), (40, 1715323), (62, 1106660), (124, 553330), (155, 442664), (248, 276665), (310, 221332), (620, 110666), (1240, 55333)]