77893360

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2503}}^1$

素因数の和:2905

約数の個数: 40

約数和(自身を含む): 181640160

約数和(自身を除く): 103746800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 2503, 3112, 3890, 5006, 6224, 7780, 10012, 12515, 15560, 20024, 25030, 31120, 40048, 50060, 100120, 200240, 973667, 1947334, 3894668, 4868335, 7789336, 9736670, 15578672, 19473340, 38946680, 77893360]

約数ペア:

[(1, 77893360), (2, 38946680), (4, 19473340), (5, 15578672), (8, 9736670), (10, 7789336), (16, 4868335), (20, 3894668), (40, 1947334), (80, 973667), (389, 200240), (778, 100120), (1556, 50060), (1945, 40048), (2503, 31120), (3112, 25030), (3890, 20024), (5006, 15560), (6224, 12515), (7780, 10012)]