81955240

素因数分解:

$2^3\times 5^1\times {\mathrm{1153}}^1\times {\mathrm{1777}}^1$

素因数の和:2941

約数の個数: 32

約数和(自身を含む): 184663080

約数和(自身を除く): 102707840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1153, 1777, 2306, 3554, 4612, 5765, 7108, 8885, 9224, 11530, 14216, 17770, 23060, 35540, 46120, 71080, 2048881, 4097762, 8195524, 10244405, 16391048, 20488810, 40977620, 81955240]

約数ペア:

[(1, 81955240), (2, 40977620), (4, 20488810), (5, 16391048), (8, 10244405), (10, 8195524), (20, 4097762), (40, 2048881), (1153, 71080), (1777, 46120), (2306, 35540), (3554, 23060), (4612, 17770), (5765, 14216), (7108, 11530), (8885, 9224)]