245906780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{12821}}^1$

素因数の和:12974

約数の個数: 48

約数和(自身を含む): 594530496

約数和(自身を除く): 348623716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3836, 4795, 9590, 12821, 19180, 25642, 51284, 64105, 89747, 128210, 179494, 256420, 358988, 448735, 897470, 1756477, 1794940, 3512954, 7025908, 8782385, 12295339, 17564770, 24590678, 35129540, 49181356, 61476695, 122953390, 245906780]

約数ペア:

[(1, 245906780), (2, 122953390), (4, 61476695), (5, 49181356), (7, 35129540), (10, 24590678), (14, 17564770), (20, 12295339), (28, 8782385), (35, 7025908), (70, 3512954), (137, 1794940), (140, 1756477), (274, 897470), (548, 448735), (685, 358988), (959, 256420), (1370, 179494), (1918, 128210), (2740, 89747), (3836, 64105), (4795, 51284), (9590, 25642), (12821, 19180)]