25295480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1560

約数の個数: 64

約数和(自身を含む): 66156480

約数和(自身を除く): 40861000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1481, 1708, 2135, 2440, 2962, 3416, 4270, 5924, 7405, 8540, 10367, 11848, 14810, 17080, 20734, 29620, 41468, 51835, 59240, 82936, 90341, 103670, 180682, 207340, 361364, 414680, 451705, 632387, 722728, 903410, 1264774, 1806820, 2529548, 3161935, 3613640, 5059096, 6323870, 12647740, 25295480]

約数ペア:

[(1, 25295480), (2, 12647740), (4, 6323870), (5, 5059096), (7, 3613640), (8, 3161935), (10, 2529548), (14, 1806820), (20, 1264774), (28, 903410), (35, 722728), (40, 632387), (56, 451705), (61, 414680), (70, 361364), (122, 207340), (140, 180682), (244, 103670), (280, 90341), (305, 82936), (427, 59240), (488, 51835), (610, 41468), (854, 29620), (1220, 20734), (1481, 17080), (1708, 14810), (2135, 11848), (2440, 10367), (2962, 8540), (3416, 7405), (4270, 5924)]