67810480

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2179}}^1$

素因数の和:2581

約数の個数: 40

約数和(自身を含む): 158137200

約数和(自身を除く): 90326720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 2179, 3112, 3890, 4358, 6224, 7780, 8716, 10895, 15560, 17432, 21790, 31120, 34864, 43580, 87160, 174320, 847631, 1695262, 3390524, 4238155, 6781048, 8476310, 13562096, 16952620, 33905240, 67810480]

約数ペア:

[(1, 67810480), (2, 33905240), (4, 16952620), (5, 13562096), (8, 8476310), (10, 6781048), (16, 4238155), (20, 3390524), (40, 1695262), (80, 847631), (389, 174320), (778, 87160), (1556, 43580), (1945, 34864), (2179, 31120), (3112, 21790), (3890, 17432), (4358, 15560), (6224, 10895), (7780, 8716)]