2109555640

素因数分解:

$2^3\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{35419}}^1$

素因数の和:36919

約数の個数: 32

約数和(自身を含む): 4749822000

約数和(自身を除く): 2640266360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1489, 2978, 5956, 7445, 11912, 14890, 29780, 35419, 59560, 70838, 141676, 177095, 283352, 354190, 708380, 1416760, 52738891, 105477782, 210955564, 263694455, 421911128, 527388910, 1054777820, 2109555640]

約数ペア:

[(1, 2109555640), (2, 1054777820), (4, 527388910), (5, 421911128), (8, 263694455), (10, 210955564), (20, 105477782), (40, 52738891), (1489, 1416760), (2978, 708380), (5956, 354190), (7445, 283352), (11912, 177095), (14890, 141676), (29780, 70838), (35419, 59560)]