18724426640

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1352921}}^1$

素因数の和:1353107

約数の個数: 40

約数和(自身を含む): 43785967608

約数和(自身を除く): 25061540968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 13840, 1352921, 2705842, 5411684, 6764605, 10823368, 13529210, 21646736, 27058420, 54116840, 108233680, 234055333, 468110666, 936221332, 1170276665, 1872442664, 2340553330, 3744885328, 4681106660, 9362213320, 18724426640]

約数ペア:

[(1, 18724426640), (2, 9362213320), (4, 4681106660), (5, 3744885328), (8, 2340553330), (10, 1872442664), (16, 1170276665), (20, 936221332), (40, 468110666), (80, 234055333), (173, 108233680), (346, 54116840), (692, 27058420), (865, 21646736), (1384, 13529210), (1730, 10823368), (2768, 6764605), (3460, 5411684), (6920, 2705842), (13840, 1352921)]