18718280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66851}}^1$

素因数の和:66869

約数の個数: 32

約数和(自身を含む): 48133440

約数和(自身を除く): 29415160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66851, 133702, 267404, 334255, 467957, 534808, 668510, 935914, 1337020, 1871828, 2339785, 2674040, 3743656, 4679570, 9359140, 18718280]

約数ペア:

[(1, 18718280), (2, 9359140), (4, 4679570), (5, 3743656), (7, 2674040), (8, 2339785), (10, 1871828), (14, 1337020), (20, 935914), (28, 668510), (35, 534808), (40, 467957), (56, 334255), (70, 267404), (140, 133702), (280, 66851)]