86375560

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2179}}^1$

素因数の和:3181

約数の個数: 32

約数和(自身を含む): 194630400

約数和(自身を除く): 108254840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 2179, 3964, 4358, 4955, 7928, 8716, 9910, 10895, 17432, 19820, 21790, 39640, 43580, 87160, 2159389, 4318778, 8637556, 10796945, 17275112, 21593890, 43187780, 86375560]

約数ペア:

[(1, 86375560), (2, 43187780), (4, 21593890), (5, 17275112), (8, 10796945), (10, 8637556), (20, 4318778), (40, 2159389), (991, 87160), (1982, 43580), (2179, 39640), (3964, 21790), (4358, 19820), (4955, 17432), (7928, 10895), (8716, 9910)]