18606640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17891}}^1$

素因数の和:17917

約数の個数: 40

約数和(自身を含む): 46590768

約数和(自身を除く): 27984128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17891, 35782, 71564, 89455, 143128, 178910, 232583, 286256, 357820, 465166, 715640, 930332, 1162915, 1431280, 1860664, 2325830, 3721328, 4651660, 9303320, 18606640]

約数ペア:

[(1, 18606640), (2, 9303320), (4, 4651660), (5, 3721328), (8, 2325830), (10, 1860664), (13, 1431280), (16, 1162915), (20, 930332), (26, 715640), (40, 465166), (52, 357820), (65, 286256), (80, 232583), (104, 178910), (130, 143128), (208, 89455), (260, 71564), (520, 35782), (1040, 17891)]