1245491660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{64937}}^1$

素因数の和:65090

約数の個数: 48

約数和(自身を含む): 3011045184

約数和(自身を除く): 1765553524

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, 19180, 64937, 129874, 259748, 324685, 454559, 649370, 909118, 1298740, 1818236, 2272795, 4545590, 8896369, 9091180, 17792738, 35585476, 44481845, 62274583, 88963690, 124549166, 177927380, 249098332, 311372915, 622745830, 1245491660]

約数ペア:

[(1, 1245491660), (2, 622745830), (4, 311372915), (5, 249098332), (7, 177927380), (10, 124549166), (14, 88963690), (20, 62274583), (28, 44481845), (35, 35585476), (70, 17792738), (137, 9091180), (140, 8896369), (274, 4545590), (548, 2272795), (685, 1818236), (959, 1298740), (1370, 909118), (1918, 649370), (2740, 454559), (3836, 324685), (4795, 259748), (9590, 129874), (19180, 64937)]