18213860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{130099}}^1$

素因数の和:130115

約数の個数: 24

約数和(自身を含む): 43713600

約数和(自身を除く): 25499740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 130099, 260198, 520396, 650495, 910693, 1300990, 1821386, 2601980, 3642772, 4553465, 9106930, 18213860]

約数ペア:

[(1, 18213860), (2, 9106930), (4, 4553465), (5, 3642772), (7, 2601980), (10, 1821386), (14, 1300990), (20, 910693), (28, 650495), (35, 520396), (70, 260198), (140, 130099)]