1145000

素因数分解:

$2^3\times 5^4\times {\mathrm{229}}^1$

素因数の和:255

約数の個数: 40

約数和(自身を含む): 2694450

約数和(自身を除く): 1549450

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 229, 250, 458, 500, 625, 916, 1000, 1145, 1250, 1832, 2290, 2500, 4580, 5000, 5725, 9160, 11450, 22900, 28625, 45800, 57250, 114500, 143125, 229000, 286250, 572500, 1145000]

約数ペア:

[(1, 1145000), (2, 572500), (4, 286250), (5, 229000), (8, 143125), (10, 114500), (20, 57250), (25, 45800), (40, 28625), (50, 22900), (100, 11450), (125, 9160), (200, 5725), (229, 5000), (250, 4580), (458, 2500), (500, 2290), (625, 1832), (916, 1250), (1000, 1145)]