25682000

素因数分解:

$2^4\times 5^3\times {\mathrm{12841}}^1$

素因数の和:12864

約数の個数: 40

約数和(自身を含む): 62103912

約数和(自身を除く): 36421912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 12841, 25682, 51364, 64205, 102728, 128410, 205456, 256820, 321025, 513640, 642050, 1027280, 1284100, 1605125, 2568200, 3210250, 5136400, 6420500, 12841000, 25682000]

約数ペア:

[(1, 25682000), (2, 12841000), (4, 6420500), (5, 5136400), (8, 3210250), (10, 2568200), (16, 1605125), (20, 1284100), (25, 1027280), (40, 642050), (50, 513640), (80, 321025), (100, 256820), (125, 205456), (200, 128410), (250, 102728), (400, 64205), (500, 51364), (1000, 25682), (2000, 12841)]