208031215

素因数分解:

$5^1\times 7^3\times {\mathrm{101}}^1\times {\mathrm{1201}}^1$

素因数の和:1328

約数の個数: 32

約数和(自身を含む): 294249600

約数和(自身を除く): 86218385

約数列:

[1, 5, 7, 35, 49, 101, 245, 343, 505, 707, 1201, 1715, 3535, 4949, 6005, 8407, 24745, 34643, 42035, 58849, 121301, 173215, 294245, 411943, 606505, 849107, 2059715, 4245535, 5943749, 29718745, 41606243, 208031215]

約数ペア:

[(1, 208031215), (5, 41606243), (7, 29718745), (35, 5943749), (49, 4245535), (101, 2059715), (245, 849107), (343, 606505), (505, 411943), (707, 294245), (1201, 173215), (1715, 121301), (3535, 58849), (4949, 42035), (6005, 34643), (8407, 24745)]