20903670400

素因数分解:

$2^7\times 5^2\times {\mathrm{6532397}}^1$

素因数の和:6532421

約数の個数: 48

約数和(自身を含む): 51638606190

約数和(自身を除く): 30734935790

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6532397, 13064794, 26129588, 32661985, 52259176, 65323970, 104518352, 130647940, 163309925, 209036704, 261295880, 326619850, 418073408, 522591760, 653239700, 836146816, 1045183520, 1306479400, 2090367040, 2612958800, 4180734080, 5225917600, 10451835200, 20903670400]

約数ペア:

[(1, 20903670400), (2, 10451835200), (4, 5225917600), (5, 4180734080), (8, 2612958800), (10, 2090367040), (16, 1306479400), (20, 1045183520), (25, 836146816), (32, 653239700), (40, 522591760), (50, 418073408), (64, 326619850), (80, 261295880), (100, 209036704), (128, 163309925), (160, 130647940), (200, 104518352), (320, 65323970), (400, 52259176), (640, 32661985), (800, 26129588), (1600, 13064794), (3200, 6532397)]