18080008

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 34776000

約数和(自身を除く): 16695992

約数列:

[1, 2, 4, 8, 71, 139, 142, 229, 278, 284, 458, 556, 568, 916, 1112, 1832, 9869, 16259, 19738, 31831, 32518, 39476, 63662, 65036, 78952, 127324, 130072, 254648, 2260001, 4520002, 9040004, 18080008]

約数ペア:

[(1, 18080008), (2, 9040004), (4, 4520002), (8, 2260001), (71, 254648), (139, 130072), (142, 127324), (229, 78952), (278, 65036), (284, 63662), (458, 39476), (556, 32518), (568, 31831), (916, 19738), (1112, 16259), (1832, 9869)]