163905640

素因数分解:

$2^3\times 5^1\times {\mathrm{757}}^1\times {\mathrm{5413}}^1$

素因数の和:6181

約数の個数: 32

約数和(自身を含む): 369343080

約数和(自身を除く): 205437440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 757, 1514, 3028, 3785, 5413, 6056, 7570, 10826, 15140, 21652, 27065, 30280, 43304, 54130, 108260, 216520, 4097641, 8195282, 16390564, 20488205, 32781128, 40976410, 81952820, 163905640]

約数ペア:

[(1, 163905640), (2, 81952820), (4, 40976410), (5, 32781128), (8, 20488205), (10, 16390564), (20, 8195282), (40, 4097641), (757, 216520), (1514, 108260), (3028, 54130), (3785, 43304), (5413, 30280), (6056, 27065), (7570, 21652), (10826, 15140)]