206828840

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{10531}}^1$

素因数の和:11033

約数の個数: 32

約数和(自身を含む): 466356960

約数和(自身を除く): 259528120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 10531, 19640, 21062, 42124, 52655, 84248, 105310, 210620, 421240, 5170721, 10341442, 20682884, 25853605, 41365768, 51707210, 103414420, 206828840]

約数ペア:

[(1, 206828840), (2, 103414420), (4, 51707210), (5, 41365768), (8, 25853605), (10, 20682884), (20, 10341442), (40, 5170721), (491, 421240), (982, 210620), (1964, 105310), (2455, 84248), (3928, 52655), (4910, 42124), (9820, 21062), (10531, 19640)]