11217520

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{499}}^1$

素因数の和:793

約数の個数: 40

約数和(自身を含む): 26226000

約数和(自身を除く): 15008480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 499, 562, 998, 1124, 1405, 1996, 2248, 2495, 2810, 3992, 4496, 4990, 5620, 7984, 9980, 11240, 19960, 22480, 39920, 140219, 280438, 560876, 701095, 1121752, 1402190, 2243504, 2804380, 5608760, 11217520]

約数ペア:

[(1, 11217520), (2, 5608760), (4, 2804380), (5, 2243504), (8, 1402190), (10, 1121752), (16, 701095), (20, 560876), (40, 280438), (80, 140219), (281, 39920), (499, 22480), (562, 19960), (998, 11240), (1124, 9980), (1405, 7984), (1996, 5620), (2248, 4990), (2495, 4496), (2810, 3992)]