20021600

素因数分解:

$2^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:912

約数の個数: 72

約数和(自身を含む): 50621760

約数和(自身を除く): 30600160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 145, 160, 200, 232, 290, 400, 464, 580, 725, 800, 863, 928, 1160, 1450, 1726, 2320, 2900, 3452, 4315, 4640, 5800, 6904, 8630, 11600, 13808, 17260, 21575, 23200, 25027, 27616, 34520, 43150, 50054, 69040, 86300, 100108, 125135, 138080, 172600, 200216, 250270, 345200, 400432, 500540, 625675, 690400, 800864, 1001080, 1251350, 2002160, 2502700, 4004320, 5005400, 10010800, 20021600]

約数ペア:

[(1, 20021600), (2, 10010800), (4, 5005400), (5, 4004320), (8, 2502700), (10, 2002160), (16, 1251350), (20, 1001080), (25, 800864), (29, 690400), (32, 625675), (40, 500540), (50, 400432), (58, 345200), (80, 250270), (100, 200216), (116, 172600), (145, 138080), (160, 125135), (200, 100108), (232, 86300), (290, 69040), (400, 50054), (464, 43150), (580, 34520), (725, 27616), (800, 25027), (863, 23200), (928, 21575), (1160, 17260), (1450, 13808), (1726, 11600), (2320, 8630), (2900, 6904), (3452, 5800), (4315, 4640)]