3215000

素因数分解:

$2^3\times 5^4\times {\mathrm{643}}^1$

素因数の和:669

約数の個数: 40

約数和(自身を含む): 7544460

約数和(自身を除く): 4329460

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 643, 1000, 1250, 1286, 2500, 2572, 3215, 5000, 5144, 6430, 12860, 16075, 25720, 32150, 64300, 80375, 128600, 160750, 321500, 401875, 643000, 803750, 1607500, 3215000]

約数ペア:

[(1, 3215000), (2, 1607500), (4, 803750), (5, 643000), (8, 401875), (10, 321500), (20, 160750), (25, 128600), (40, 80375), (50, 64300), (100, 32150), (125, 25720), (200, 16075), (250, 12860), (500, 6430), (625, 5144), (643, 5000), (1000, 3215), (1250, 2572), (1286, 2500)]