257102000

素因数分解:

$2^4\times 5^3\times {\mathrm{128551}}^1$

素因数の和:128574

約数の個数: 40

約数和(自身を含む): 621677472

約数和(自身を除く): 364575472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 128551, 257102, 514204, 642755, 1028408, 1285510, 2056816, 2571020, 3213775, 5142040, 6427550, 10284080, 12855100, 16068875, 25710200, 32137750, 51420400, 64275500, 128551000, 257102000]

約数ペア:

[(1, 257102000), (2, 128551000), (4, 64275500), (5, 51420400), (8, 32137750), (10, 25710200), (16, 16068875), (20, 12855100), (25, 10284080), (40, 6427550), (50, 5142040), (80, 3213775), (100, 2571020), (125, 2056816), (200, 1285510), (250, 1028408), (400, 642755), (500, 514204), (1000, 257102), (2000, 128551)]