20247800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3491}}^1$

素因数の和:3536

約数の個数: 48

約数和(自身を含む): 48713400

約数和(自身を除く): 28465600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3491, 5800, 6982, 13964, 17455, 27928, 34910, 69820, 87275, 101239, 139640, 174550, 202478, 349100, 404956, 506195, 698200, 809912, 1012390, 2024780, 2530975, 4049560, 5061950, 10123900, 20247800]

約数ペア:

[(1, 20247800), (2, 10123900), (4, 5061950), (5, 4049560), (8, 2530975), (10, 2024780), (20, 1012390), (25, 809912), (29, 698200), (40, 506195), (50, 404956), (58, 349100), (100, 202478), (116, 174550), (145, 139640), (200, 101239), (232, 87275), (290, 69820), (580, 34910), (725, 27928), (1160, 17455), (1450, 13964), (2900, 6982), (3491, 5800)]