89887880

素因数分解:

$2^3\times 5^1\times {\mathrm{1153}}^1\times {\mathrm{1949}}^1$

素因数の和:3113

約数の個数: 32

約数和(自身を含む): 202527000

約数和(自身を除く): 112639120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1153, 1949, 2306, 3898, 4612, 5765, 7796, 9224, 9745, 11530, 15592, 19490, 23060, 38980, 46120, 77960, 2247197, 4494394, 8988788, 11235985, 17977576, 22471970, 44943940, 89887880]

約数ペア:

[(1, 89887880), (2, 44943940), (4, 22471970), (5, 17977576), (8, 11235985), (10, 8988788), (20, 4494394), (40, 2247197), (1153, 77960), (1949, 46120), (2306, 38980), (3898, 23060), (4612, 19490), (5765, 15592), (7796, 11530), (9224, 9745)]