4080781160

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{262261}}^1$

素因数の和:262661

約数の個数: 32

約数和(自身を含む): 9205396200

約数和(自身を除く): 5124615040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 15560, 262261, 524522, 1049044, 1311305, 2098088, 2622610, 5245220, 10490440, 102019529, 204039058, 408078116, 510097645, 816156232, 1020195290, 2040390580, 4080781160]

約数ペア:

[(1, 4080781160), (2, 2040390580), (4, 1020195290), (5, 816156232), (8, 510097645), (10, 408078116), (20, 204039058), (40, 102019529), (389, 10490440), (778, 5245220), (1556, 2622610), (1945, 2098088), (3112, 1311305), (3890, 1049044), (7780, 524522), (15560, 262261)]