27879880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{99571}}^1$

素因数の和:99589

約数の個数: 32

約数和(自身を含む): 71691840

約数和(自身を除く): 43811960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 99571, 199142, 398284, 497855, 696997, 796568, 995710, 1393994, 1991420, 2787988, 3484985, 3982840, 5575976, 6969970, 13939940, 27879880]

約数ペア:

[(1, 27879880), (2, 13939940), (4, 6969970), (5, 5575976), (7, 3982840), (8, 3484985), (10, 2787988), (14, 1991420), (20, 1393994), (28, 995710), (35, 796568), (40, 696997), (56, 497855), (70, 398284), (140, 199142), (280, 99571)]