25958000

素因数分解:

$2^4\times 5^3\times {\mathrm{12979}}^1$

素因数の和:13002

約数の個数: 40

約数和(自身を含む): 62771280

約数和(自身を除く): 36813280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 12979, 25958, 51916, 64895, 103832, 129790, 207664, 259580, 324475, 519160, 648950, 1038320, 1297900, 1622375, 2595800, 3244750, 5191600, 6489500, 12979000, 25958000]

約数ペア:

[(1, 25958000), (2, 12979000), (4, 6489500), (5, 5191600), (8, 3244750), (10, 2595800), (16, 1622375), (20, 1297900), (25, 1038320), (40, 648950), (50, 519160), (80, 324475), (100, 259580), (125, 207664), (200, 129790), (250, 103832), (400, 64895), (500, 51916), (1000, 25958), (2000, 12979)]