262000

素因数分解:

$2^4\times 5^3\times {\mathrm{131}}^1$

素因数の和:154

約数の個数: 40

約数和(自身を含む): 638352

約数和(自身を除く): 376352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 131, 200, 250, 262, 400, 500, 524, 655, 1000, 1048, 1310, 2000, 2096, 2620, 3275, 5240, 6550, 10480, 13100, 16375, 26200, 32750, 52400, 65500, 131000, 262000]

約数ペア:

[(1, 262000), (2, 131000), (4, 65500), (5, 52400), (8, 32750), (10, 26200), (16, 16375), (20, 13100), (25, 10480), (40, 6550), (50, 5240), (80, 3275), (100, 2620), (125, 2096), (131, 2000), (200, 1310), (250, 1048), (262, 1000), (400, 655), (500, 524)]