20219500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 51891840

約数和(自身を除く): 31672340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 109, 125, 140, 175, 212, 218, 250, 265, 350, 371, 436, 500, 530, 545, 700, 742, 763, 875, 1060, 1090, 1325, 1484, 1526, 1750, 1855, 2180, 2650, 2725, 3052, 3500, 3710, 3815, 5300, 5450, 5777, 6625, 7420, 7630, 9275, 10900, 11554, 13250, 13625, 15260, 18550, 19075, 23108, 26500, 27250, 28885, 37100, 38150, 40439, 46375, 54500, 57770, 76300, 80878, 92750, 95375, 115540, 144425, 161756, 185500, 190750, 202195, 288850, 381500, 404390, 577700, 722125, 808780, 1010975, 1444250, 2021950, 2888500, 4043900, 5054875, 10109750, 20219500]

約数ペア:

[(1, 20219500), (2, 10109750), (4, 5054875), (5, 4043900), (7, 2888500), (10, 2021950), (14, 1444250), (20, 1010975), (25, 808780), (28, 722125), (35, 577700), (50, 404390), (53, 381500), (70, 288850), (100, 202195), (106, 190750), (109, 185500), (125, 161756), (140, 144425), (175, 115540), (212, 95375), (218, 92750), (250, 80878), (265, 76300), (350, 57770), (371, 54500), (436, 46375), (500, 40439), (530, 38150), (545, 37100), (700, 28885), (742, 27250), (763, 26500), (875, 23108), (1060, 19075), (1090, 18550), (1325, 15260), (1484, 13625), (1526, 13250), (1750, 11554), (1855, 10900), (2180, 9275), (2650, 7630), (2725, 7420), (3052, 6625), (3500, 5777), (3710, 5450), (3815, 5300)]