67740460

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8707}}^1$

素因数の和:9105

約数の個数: 24

約数和(自身を含む): 142637040

約数和(自身を除く): 74896580

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 8707, 17414, 34828, 43535, 87070, 174140, 3387023, 6774046, 13548092, 16935115, 33870230, 67740460]

約数ペア:

[(1, 67740460), (2, 33870230), (4, 16935115), (5, 13548092), (10, 6774046), (20, 3387023), (389, 174140), (778, 87070), (1556, 43535), (1945, 34828), (3890, 17414), (7780, 8707)]