71244440

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{5381}}^1$

素因数の和:5723

約数の個数: 32

約数和(自身を含む): 160814160

約数和(自身を除く): 89569720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 5381, 6620, 10762, 13240, 21524, 26905, 43048, 53810, 107620, 215240, 1781111, 3562222, 7124444, 8905555, 14248888, 17811110, 35622220, 71244440]

約数ペア:

[(1, 71244440), (2, 35622220), (4, 17811110), (5, 14248888), (8, 8905555), (10, 7124444), (20, 3562222), (40, 1781111), (331, 215240), (662, 107620), (1324, 53810), (1655, 43048), (2648, 26905), (3310, 21524), (5381, 13240), (6620, 10762)]