2000935120

素因数分解:

$2^4\times 5^1\times {\mathrm{2539}}^1\times {\mathrm{9851}}^1$

素因数の和:12403

約数の個数: 40

約数和(自身を含む): 4654478880

約数和(自身を除く): 2653543760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2539, 5078, 9851, 10156, 12695, 19702, 20312, 25390, 39404, 40624, 49255, 50780, 78808, 98510, 101560, 157616, 197020, 203120, 394040, 788080, 25011689, 50023378, 100046756, 125058445, 200093512, 250116890, 400187024, 500233780, 1000467560, 2000935120]

約数ペア:

[(1, 2000935120), (2, 1000467560), (4, 500233780), (5, 400187024), (8, 250116890), (10, 200093512), (16, 125058445), (20, 100046756), (40, 50023378), (80, 25011689), (2539, 788080), (5078, 394040), (9851, 203120), (10156, 197020), (12695, 157616), (19702, 101560), (20312, 98510), (25390, 78808), (39404, 50780), (40624, 49255)]