208657210

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{342061}}^1$

素因数の和:342129

約数の個数: 16

約数和(自身を含む): 381741192

約数和(自身を除く): 173083982

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 342061, 684122, 1710305, 3420610, 20865721, 41731442, 104328605, 208657210]

約数ペア:

[(1, 208657210), (2, 104328605), (5, 41731442), (10, 20865721), (61, 3420610), (122, 1710305), (305, 684122), (610, 342061)]