208169975

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1699}}^1$

素因数の和:1764

約数の個数: 36

約数和(自身を含む): 289323000

約数和(自身を除く): 81153025

約数列:

[1, 5, 13, 25, 29, 65, 145, 169, 325, 377, 725, 845, 1699, 1885, 4225, 4901, 8495, 9425, 22087, 24505, 42475, 49271, 110435, 122525, 246355, 287131, 552175, 640523, 1231775, 1435655, 3202615, 7178275, 8326799, 16013075, 41633995, 208169975]

約数ペア:

[(1, 208169975), (5, 41633995), (13, 16013075), (25, 8326799), (29, 7178275), (65, 3202615), (145, 1435655), (169, 1231775), (325, 640523), (377, 552175), (725, 287131), (845, 246355), (1699, 122525), (1885, 110435), (4225, 49271), (4901, 42475), (8495, 24505), (9425, 22087)]