209002990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{30781}}^1$

素因数の和:30892

約数の個数: 32

約数和(自身を含む): 434395584

約数和(自身を除く): 225392594

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 97, 194, 485, 679, 970, 1358, 3395, 6790, 30781, 61562, 153905, 215467, 307810, 430934, 1077335, 2154670, 2985757, 5971514, 14928785, 20900299, 29857570, 41800598, 104501495, 209002990]

約数ペア:

[(1, 209002990), (2, 104501495), (5, 41800598), (7, 29857570), (10, 20900299), (14, 14928785), (35, 5971514), (70, 2985757), (97, 2154670), (194, 1077335), (485, 430934), (679, 307810), (970, 215467), (1358, 153905), (3395, 61562), (6790, 30781)]