1639291208

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{511001}}^1$

素因数の和:511408

約数の個数: 16

約数和(自身を含む): 3081342060

約数和(自身を除く): 1442050852

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 511001, 1022002, 2044004, 4088008, 204911401, 409822802, 819645604, 1639291208]

約数ペア:

[(1, 1639291208), (2, 819645604), (4, 409822802), (8, 204911401), (401, 4088008), (802, 2044004), (1604, 1022002), (3208, 511001)]