20418104

素因数分解:

$2^3\times 7^4\times {\mathrm{1063}}^1$

素因数の和:1097

約数の個数: 40

約数和(自身を含む): 44703960

約数和(自身を除く): 24285856

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1063, 1372, 2126, 2401, 2744, 4252, 4802, 7441, 8504, 9604, 14882, 19208, 29764, 52087, 59528, 104174, 208348, 364609, 416696, 729218, 1458436, 2552263, 2916872, 5104526, 10209052, 20418104]

約数ペア:

[(1, 20418104), (2, 10209052), (4, 5104526), (7, 2916872), (8, 2552263), (14, 1458436), (28, 729218), (49, 416696), (56, 364609), (98, 208348), (196, 104174), (343, 59528), (392, 52087), (686, 29764), (1063, 19208), (1372, 14882), (2126, 9604), (2401, 8504), (2744, 7441), (4252, 4802)]