87190840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2791}}^1$

素因数の和:2884

約数の個数: 64

約数和(自身を含む): 217105920

約数和(自身を除く): 129915080

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, 1420, 1562, 2791, 2840, 3124, 3905, 5582, 6248, 7810, 11164, 13955, 15620, 22328, 27910, 30701, 31240, 55820, 61402, 111640, 122804, 153505, 198161, 245608, 307010, 396322, 614020, 792644, 990805, 1228040, 1585288, 1981610, 2179771, 3963220, 4359542, 7926440, 8719084, 10898855, 17438168, 21797710, 43595420, 87190840]

約数ペア:

[(1, 87190840), (2, 43595420), (4, 21797710), (5, 17438168), (8, 10898855), (10, 8719084), (11, 7926440), (20, 4359542), (22, 3963220), (40, 2179771), (44, 1981610), (55, 1585288), (71, 1228040), (88, 990805), (110, 792644), (142, 614020), (220, 396322), (284, 307010), (355, 245608), (440, 198161), (568, 153505), (710, 122804), (781, 111640), (1420, 61402), (1562, 55820), (2791, 31240), (2840, 30701), (3124, 27910), (3905, 22328), (5582, 15620), (6248, 13955), (7810, 11164)]