55438540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89417}}^1$

素因数の和:89457

約数の個数: 24

約数和(自身を含む): 120177792

約数和(自身を除く): 64739252

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 89417, 178834, 357668, 447085, 894170, 1788340, 2771927, 5543854, 11087708, 13859635, 27719270, 55438540]

約数ペア:

[(1, 55438540), (2, 27719270), (4, 13859635), (5, 11087708), (10, 5543854), (20, 2771927), (31, 1788340), (62, 894170), (124, 447085), (155, 357668), (310, 178834), (620, 89417)]