81555824

素因数分解:

$2^4\times 7^1\times {\mathrm{271}}^1\times {\mathrm{2687}}^1$

素因数の和:2973

約数の個数: 40

約数和(自身を含む): 181321728

約数和(自身を除く): 99765904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 271, 542, 1084, 1897, 2168, 2687, 3794, 4336, 5374, 7588, 10748, 15176, 18809, 21496, 30352, 37618, 42992, 75236, 150472, 300944, 728177, 1456354, 2912708, 5097239, 5825416, 10194478, 11650832, 20388956, 40777912, 81555824]

約数ペア:

[(1, 81555824), (2, 40777912), (4, 20388956), (7, 11650832), (8, 10194478), (14, 5825416), (16, 5097239), (28, 2912708), (56, 1456354), (112, 728177), (271, 300944), (542, 150472), (1084, 75236), (1897, 42992), (2168, 37618), (2687, 30352), (3794, 21496), (4336, 18809), (5374, 15176), (7588, 10748)]