11990480

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2111}}^1$

素因数の和:2195

約数の個数: 40

約数和(自身を含む): 28283904

約数和(自身を除く): 16293424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2111, 2840, 4222, 5680, 8444, 10555, 16888, 21110, 33776, 42220, 84440, 149881, 168880, 299762, 599524, 749405, 1199048, 1498810, 2398096, 2997620, 5995240, 11990480]

約数ペア:

[(1, 11990480), (2, 5995240), (4, 2997620), (5, 2398096), (8, 1498810), (10, 1199048), (16, 749405), (20, 599524), (40, 299762), (71, 168880), (80, 149881), (142, 84440), (284, 42220), (355, 33776), (568, 21110), (710, 16888), (1136, 10555), (1420, 8444), (2111, 5680), (2840, 4222)]