81135620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{2371}}^1$

素因数の和:2468

約数の個数: 48

約数和(自身を含む): 179323200

約数和(自身を除く): 98187580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 116, 118, 145, 236, 290, 295, 580, 590, 1180, 1711, 2371, 3422, 4742, 6844, 8555, 9484, 11855, 17110, 23710, 34220, 47420, 68759, 137518, 139889, 275036, 279778, 343795, 559556, 687590, 699445, 1375180, 1398890, 2797780, 4056781, 8113562, 16227124, 20283905, 40567810, 81135620]

約数ペア:

[(1, 81135620), (2, 40567810), (4, 20283905), (5, 16227124), (10, 8113562), (20, 4056781), (29, 2797780), (58, 1398890), (59, 1375180), (116, 699445), (118, 687590), (145, 559556), (236, 343795), (290, 279778), (295, 275036), (580, 139889), (590, 137518), (1180, 68759), (1711, 47420), (2371, 34220), (3422, 23710), (4742, 17110), (6844, 11855), (8555, 9484)]