56247280

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1409}}^1$

素因数の和:1921

約数の個数: 40

約数和(自身を含む): 131130000

約数和(自身を除く): 74882720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1409, 1996, 2495, 2818, 3992, 4990, 5636, 7045, 7984, 9980, 11272, 14090, 19960, 22544, 28180, 39920, 56360, 112720, 703091, 1406182, 2812364, 3515455, 5624728, 7030910, 11249456, 14061820, 28123640, 56247280]

約数ペア:

[(1, 56247280), (2, 28123640), (4, 14061820), (5, 11249456), (8, 7030910), (10, 5624728), (16, 3515455), (20, 2812364), (40, 1406182), (80, 703091), (499, 112720), (998, 56360), (1409, 39920), (1996, 28180), (2495, 22544), (2818, 19960), (3992, 14090), (4990, 11272), (5636, 9980), (7045, 7984)]