12647740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 30873024

約数和(自身を除く): 18225284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1481, 1708, 2135, 2962, 4270, 5924, 7405, 8540, 10367, 14810, 20734, 29620, 41468, 51835, 90341, 103670, 180682, 207340, 361364, 451705, 632387, 903410, 1264774, 1806820, 2529548, 3161935, 6323870, 12647740]

約数ペア:

[(1, 12647740), (2, 6323870), (4, 3161935), (5, 2529548), (7, 1806820), (10, 1264774), (14, 903410), (20, 632387), (28, 451705), (35, 361364), (61, 207340), (70, 180682), (122, 103670), (140, 90341), (244, 51835), (305, 41468), (427, 29620), (610, 20734), (854, 14810), (1220, 10367), (1481, 8540), (1708, 7405), (2135, 5924), (2962, 4270)]