87872440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30941}}^1$

素因数の和:31023

約数の個数: 32

約数和(自身を含む): 200504160

約数和(自身を除く): 112631720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 30941, 61882, 123764, 154705, 247528, 309410, 618820, 1237640, 2196811, 4393622, 8787244, 10984055, 17574488, 21968110, 43936220, 87872440]

約数ペア:

[(1, 87872440), (2, 43936220), (4, 21968110), (5, 17574488), (8, 10984055), (10, 8787244), (20, 4393622), (40, 2196811), (71, 1237640), (142, 618820), (284, 309410), (355, 247528), (568, 154705), (710, 123764), (1420, 61882), (2840, 30941)]