168658640

素因数分解:

$2^4\times 5^1\times {\mathrm{881}}^1\times {\mathrm{2393}}^1$

素因数の和:3287

約数の個数: 40

約数和(自身を含む): 392740488

約数和(自身を除く): 224081848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 881, 1762, 2393, 3524, 4405, 4786, 7048, 8810, 9572, 11965, 14096, 17620, 19144, 23930, 35240, 38288, 47860, 70480, 95720, 191440, 2108233, 4216466, 8432932, 10541165, 16865864, 21082330, 33731728, 42164660, 84329320, 168658640]

約数ペア:

[(1, 168658640), (2, 84329320), (4, 42164660), (5, 33731728), (8, 21082330), (10, 16865864), (16, 10541165), (20, 8432932), (40, 4216466), (80, 2108233), (881, 191440), (1762, 95720), (2393, 70480), (3524, 47860), (4405, 38288), (4786, 35240), (7048, 23930), (8810, 19144), (9572, 17620), (11965, 14096)]