198794540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1419961}}^1$

素因数の和:1419977

約数の個数: 24

約数和(自身を含む): 477107232

約数和(自身を除く): 278312692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1419961, 2839922, 5679844, 7099805, 9939727, 14199610, 19879454, 28399220, 39758908, 49698635, 99397270, 198794540]

約数ペア:

[(1, 198794540), (2, 99397270), (4, 49698635), (5, 39758908), (7, 28399220), (10, 19879454), (14, 14199610), (20, 9939727), (28, 7099805), (35, 5679844), (70, 2839922), (140, 1419961)]