20877564920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{7149851}}^1$

素因数の和:7149935

約数の個数: 32

約数和(自身を含む): 47618014320

約数和(自身を除く): 26740449400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 7149851, 14299702, 28599404, 35749255, 57198808, 71498510, 142997020, 285994040, 521939123, 1043878246, 2087756492, 2609695615, 4175512984, 5219391230, 10438782460, 20877564920]

約数ペア:

[(1, 20877564920), (2, 10438782460), (4, 5219391230), (5, 4175512984), (8, 2609695615), (10, 2087756492), (20, 1043878246), (40, 521939123), (73, 285994040), (146, 142997020), (292, 71498510), (365, 57198808), (584, 35749255), (730, 28599404), (1460, 14299702), (2920, 7149851)]