668018980

素因数分解:

$2^2\times 5^1\times {\mathrm{3517}}^1\times {\mathrm{9497}}^1$

素因数の和:13023

約数の個数: 24

約数和(自身を含む): 1403386488

約数和(自身を除く): 735367508

約数列:

[1, 2, 4, 5, 10, 20, 3517, 7034, 9497, 14068, 17585, 18994, 35170, 37988, 47485, 70340, 94970, 189940, 33400949, 66801898, 133603796, 167004745, 334009490, 668018980]

約数ペア:

[(1, 668018980), (2, 334009490), (4, 167004745), (5, 133603796), (10, 66801898), (20, 33400949), (3517, 189940), (7034, 94970), (9497, 70340), (14068, 47485), (17585, 37988), (18994, 35170)]