91991720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{99991}}^1$

素因数の和:100025

約数の個数: 32

約数和(自身を含む): 215982720

約数和(自身を除く): 123991000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 99991, 199982, 399964, 499955, 799928, 999910, 1999820, 2299793, 3999640, 4599586, 9199172, 11498965, 18398344, 22997930, 45995860, 91991720]

約数ペア:

[(1, 91991720), (2, 45995860), (4, 22997930), (5, 18398344), (8, 11498965), (10, 9199172), (20, 4599586), (23, 3999640), (40, 2299793), (46, 1999820), (92, 999910), (115, 799928), (184, 499955), (230, 399964), (460, 199982), (920, 99991)]