5105000

素因数分解:

$2^3\times 5^4\times {\mathrm{1021}}^1$

素因数の和:1047

約数の個数: 40

約数和(自身を含む): 11972730

約数和(自身を除く): 6867730

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1021, 1250, 2042, 2500, 4084, 5000, 5105, 8168, 10210, 20420, 25525, 40840, 51050, 102100, 127625, 204200, 255250, 510500, 638125, 1021000, 1276250, 2552500, 5105000]

約数ペア:

[(1, 5105000), (2, 2552500), (4, 1276250), (5, 1021000), (8, 638125), (10, 510500), (20, 255250), (25, 204200), (40, 127625), (50, 102100), (100, 51050), (125, 40840), (200, 25525), (250, 20420), (500, 10210), (625, 8168), (1000, 5105), (1021, 5000), (1250, 4084), (2042, 2500)]