86974520

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1993}}^1$

素因数の和:3095

約数の個数: 32

約数和(自身を含む): 195970320

約数和(自身を除く): 108995800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 1993, 2182, 3986, 4364, 5455, 7972, 8728, 9965, 10910, 15944, 19930, 21820, 39860, 43640, 79720, 2174363, 4348726, 8697452, 10871815, 17394904, 21743630, 43487260, 86974520]

約数ペア:

[(1, 86974520), (2, 43487260), (4, 21743630), (5, 17394904), (8, 10871815), (10, 8697452), (20, 4348726), (40, 2174363), (1091, 79720), (1993, 43640), (2182, 39860), (3986, 21820), (4364, 19930), (5455, 15944), (7972, 10910), (8728, 9965)]