19628420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20029}}^1$

素因数の和:20052

約数の個数: 36

約数和(自身を含む): 47951820

約数和(自身を除く): 28323400

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20029, 40058, 80116, 100145, 140203, 200290, 280406, 400580, 560812, 701015, 981421, 1402030, 1962842, 2804060, 3925684, 4907105, 9814210, 19628420]

約数ペア:

[(1, 19628420), (2, 9814210), (4, 4907105), (5, 3925684), (7, 2804060), (10, 1962842), (14, 1402030), (20, 981421), (28, 701015), (35, 560812), (49, 400580), (70, 280406), (98, 200290), (140, 140203), (196, 100145), (245, 80116), (490, 40058), (980, 20029)]