18338180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{130987}}^1$

素因数の和:131003

約数の個数: 24

約数和(自身を含む): 44011968

約数和(自身を除く): 25673788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 130987, 261974, 523948, 654935, 916909, 1309870, 1833818, 2619740, 3667636, 4584545, 9169090, 18338180]

約数ペア:

[(1, 18338180), (2, 9169090), (4, 4584545), (5, 3667636), (7, 2619740), (10, 1833818), (14, 1309870), (20, 916909), (28, 654935), (35, 523948), (70, 261974), (140, 130987)]