87261320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{41161}}^1$

素因数の和:41225

約数の個数: 32

約数和(自身を含む): 200047320

約数和(自身を除く): 112786000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 41161, 82322, 164644, 205805, 329288, 411610, 823220, 1646440, 2181533, 4363066, 8726132, 10907665, 17452264, 21815330, 43630660, 87261320]

約数ペア:

[(1, 87261320), (2, 43630660), (4, 21815330), (5, 17452264), (8, 10907665), (10, 8726132), (20, 4363066), (40, 2181533), (53, 1646440), (106, 823220), (212, 411610), (265, 329288), (424, 205805), (530, 164644), (1060, 82322), (2120, 41161)]