87765640

素因数分解:

$2^3\times 5^1\times {\mathrm{797}}^1\times {\mathrm{2753}}^1$

素因数の和:3561

約数の個数: 32

約数和(自身を含む): 197792280

約数和(自身を除く): 110026640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 797, 1594, 2753, 3188, 3985, 5506, 6376, 7970, 11012, 13765, 15940, 22024, 27530, 31880, 55060, 110120, 2194141, 4388282, 8776564, 10970705, 17553128, 21941410, 43882820, 87765640]

約数ペア:

[(1, 87765640), (2, 43882820), (4, 21941410), (5, 17553128), (8, 10970705), (10, 8776564), (20, 4388282), (40, 2194141), (797, 110120), (1594, 55060), (2753, 31880), (3188, 27530), (3985, 22024), (5506, 15940), (6376, 13765), (7970, 11012)]