15746780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 38114496

約数和(自身を除く): 22367716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 821, 959, 1370, 1642, 1918, 2740, 3284, 3836, 4105, 4795, 5747, 8210, 9590, 11494, 16420, 19180, 22988, 28735, 57470, 112477, 114940, 224954, 449908, 562385, 787339, 1124770, 1574678, 2249540, 3149356, 3936695, 7873390, 15746780]

約数ペア:

[(1, 15746780), (2, 7873390), (4, 3936695), (5, 3149356), (7, 2249540), (10, 1574678), (14, 1124770), (20, 787339), (28, 562385), (35, 449908), (70, 224954), (137, 114940), (140, 112477), (274, 57470), (548, 28735), (685, 22988), (821, 19180), (959, 16420), (1370, 11494), (1642, 9590), (1918, 8210), (2740, 5747), (3284, 4795), (3836, 4105)]