1320247340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1\times {\mathrm{997}}^1$

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 2816419872

約数和(自身を除く): 1496172532

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 907, 997, 1460, 1814, 1994, 3628, 3988, 4535, 4985, 9070, 9970, 18140, 19940, 66211, 72781, 132422, 145562, 264844, 291124, 331055, 363905, 662110, 727810, 904279, 1324220, 1455620, 1808558, 3617116, 4521395, 9042790, 18085580, 66012367, 132024734, 264049468, 330061835, 660123670, 1320247340]

約数ペア:

[(1, 1320247340), (2, 660123670), (4, 330061835), (5, 264049468), (10, 132024734), (20, 66012367), (73, 18085580), (146, 9042790), (292, 4521395), (365, 3617116), (730, 1808558), (907, 1455620), (997, 1324220), (1460, 904279), (1814, 727810), (1994, 662110), (3628, 363905), (3988, 331055), (4535, 291124), (4985, 264844), (9070, 145562), (9970, 132422), (18140, 72781), (19940, 66211)]