28885000

素因数分解:

$2^3\times 5^4\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 69587100

約数和(自身を除く): 40702100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 109, 125, 200, 212, 218, 250, 265, 424, 436, 500, 530, 545, 625, 872, 1000, 1060, 1090, 1250, 1325, 2120, 2180, 2500, 2650, 2725, 4360, 5000, 5300, 5450, 5777, 6625, 10600, 10900, 11554, 13250, 13625, 21800, 23108, 26500, 27250, 28885, 33125, 46216, 53000, 54500, 57770, 66250, 68125, 109000, 115540, 132500, 136250, 144425, 231080, 265000, 272500, 288850, 545000, 577700, 722125, 1155400, 1444250, 2888500, 3610625, 5777000, 7221250, 14442500, 28885000]

約数ペア:

[(1, 28885000), (2, 14442500), (4, 7221250), (5, 5777000), (8, 3610625), (10, 2888500), (20, 1444250), (25, 1155400), (40, 722125), (50, 577700), (53, 545000), (100, 288850), (106, 272500), (109, 265000), (125, 231080), (200, 144425), (212, 136250), (218, 132500), (250, 115540), (265, 109000), (424, 68125), (436, 66250), (500, 57770), (530, 54500), (545, 53000), (625, 46216), (872, 33125), (1000, 28885), (1060, 27250), (1090, 26500), (1250, 23108), (1325, 21800), (2120, 13625), (2180, 13250), (2500, 11554), (2650, 10900), (2725, 10600), (4360, 6625), (5000, 5777), (5300, 5450)]