1310000

素因数分解:

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

素因数の和:159

約数の個数: 50

約数和(自身を含む): 3195852

約数和(自身を除く): 1885852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 131, 200, 250, 262, 400, 500, 524, 625, 655, 1000, 1048, 1250, 1310, 2000, 2096, 2500, 2620, 3275, 5000, 5240, 6550, 10000, 10480, 13100, 16375, 26200, 32750, 52400, 65500, 81875, 131000, 163750, 262000, 327500, 655000, 1310000]

約数ペア:

[(1, 1310000), (2, 655000), (4, 327500), (5, 262000), (8, 163750), (10, 131000), (16, 81875), (20, 65500), (25, 52400), (40, 32750), (50, 26200), (80, 16375), (100, 13100), (125, 10480), (131, 10000), (200, 6550), (250, 5240), (262, 5000), (400, 3275), (500, 2620), (524, 2500), (625, 2096), (655, 2000), (1000, 1310), (1048, 1250)]