18539920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{33107}}^1$

素因数の和:33127

約数の個数: 40

約数和(自身を含む): 49264704

約数和(自身を除く): 30724784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 33107, 66214, 132428, 165535, 231749, 264856, 331070, 463498, 529712, 662140, 926996, 1158745, 1324280, 1853992, 2317490, 2648560, 3707984, 4634980, 9269960, 18539920]

約数ペア:

[(1, 18539920), (2, 9269960), (4, 4634980), (5, 3707984), (7, 2648560), (8, 2317490), (10, 1853992), (14, 1324280), (16, 1158745), (20, 926996), (28, 662140), (35, 529712), (40, 463498), (56, 331070), (70, 264856), (80, 231749), (112, 165535), (140, 132428), (280, 66214), (560, 33107)]