209862100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{42829}}^1$

素因数の和:42857

約数の個数: 54

約数和(自身を含む): 529764270

約数和(自身を除く): 319902170

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 42829, 85658, 171316, 214145, 299803, 428290, 599606, 856580, 1070725, 1199212, 1499015, 2098621, 2141450, 2998030, 4197242, 4282900, 5996060, 7495075, 8394484, 10493105, 14990150, 20986210, 29980300, 41972420, 52465525, 104931050, 209862100]

約数ペア:

[(1, 209862100), (2, 104931050), (4, 52465525), (5, 41972420), (7, 29980300), (10, 20986210), (14, 14990150), (20, 10493105), (25, 8394484), (28, 7495075), (35, 5996060), (49, 4282900), (50, 4197242), (70, 2998030), (98, 2141450), (100, 2098621), (140, 1499015), (175, 1199212), (196, 1070725), (245, 856580), (350, 599606), (490, 428290), (700, 299803), (980, 214145), (1225, 171316), (2450, 85658), (4900, 42829)]