31396120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{112129}}^1$

素因数の和:112147

約数の個数: 32

約数和(自身を含む): 80733600

約数和(自身を除く): 49337480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 112129, 224258, 448516, 560645, 784903, 897032, 1121290, 1569806, 2242580, 3139612, 3924515, 4485160, 6279224, 7849030, 15698060, 31396120]

約数ペア:

[(1, 31396120), (2, 15698060), (4, 7849030), (5, 6279224), (7, 4485160), (8, 3924515), (10, 3139612), (14, 2242580), (20, 1569806), (28, 1121290), (35, 897032), (40, 784903), (56, 560645), (70, 448516), (140, 224258), (280, 112129)]