2620000

素因数分解:

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

素因数の和:161

約数の個数: 60

約数和(自身を含む): 6494796

約数和(自身を除く): 3874796

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 131, 160, 200, 250, 262, 400, 500, 524, 625, 655, 800, 1000, 1048, 1250, 1310, 2000, 2096, 2500, 2620, 3275, 4000, 4192, 5000, 5240, 6550, 10000, 10480, 13100, 16375, 20000, 20960, 26200, 32750, 52400, 65500, 81875, 104800, 131000, 163750, 262000, 327500, 524000, 655000, 1310000, 2620000]

約数ペア:

[(1, 2620000), (2, 1310000), (4, 655000), (5, 524000), (8, 327500), (10, 262000), (16, 163750), (20, 131000), (25, 104800), (32, 81875), (40, 65500), (50, 52400), (80, 32750), (100, 26200), (125, 20960), (131, 20000), (160, 16375), (200, 13100), (250, 10480), (262, 10000), (400, 6550), (500, 5240), (524, 5000), (625, 4192), (655, 4000), (800, 3275), (1000, 2620), (1048, 2500), (1250, 2096), (1310, 2000)]