25835480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 64385280

約数和(自身を除く): 38549800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 827, 1420, 1562, 1654, 2840, 3124, 3308, 3905, 4135, 6248, 6616, 7810, 8270, 9097, 15620, 16540, 18194, 31240, 33080, 36388, 45485, 58717, 72776, 90970, 117434, 181940, 234868, 293585, 363880, 469736, 587170, 645887, 1174340, 1291774, 2348680, 2583548, 3229435, 5167096, 6458870, 12917740, 25835480]

約数ペア:

[(1, 25835480), (2, 12917740), (4, 6458870), (5, 5167096), (8, 3229435), (10, 2583548), (11, 2348680), (20, 1291774), (22, 1174340), (40, 645887), (44, 587170), (55, 469736), (71, 363880), (88, 293585), (110, 234868), (142, 181940), (220, 117434), (284, 90970), (355, 72776), (440, 58717), (568, 45485), (710, 36388), (781, 33080), (827, 31240), (1420, 18194), (1562, 16540), (1654, 15620), (2840, 9097), (3124, 8270), (3308, 7810), (3905, 6616), (4135, 6248)]