3205000

素因数分解:

$2^3\times 5^4\times {\mathrm{641}}^1$

素因数の和:667

約数の個数: 40

約数和(自身を含む): 7521030

約数和(自身を除く): 4316030

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 641, 1000, 1250, 1282, 2500, 2564, 3205, 5000, 5128, 6410, 12820, 16025, 25640, 32050, 64100, 80125, 128200, 160250, 320500, 400625, 641000, 801250, 1602500, 3205000]

約数ペア:

[(1, 3205000), (2, 1602500), (4, 801250), (5, 641000), (8, 400625), (10, 320500), (20, 160250), (25, 128200), (40, 80125), (50, 64100), (100, 32050), (125, 25640), (200, 16025), (250, 12820), (500, 6410), (625, 5128), (641, 5000), (1000, 3205), (1250, 2564), (1282, 2500)]