66799840

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4691}}^1$

素因数の和:4795

約数の個数: 48

約数和(自身を含む): 159621840

約数和(自身を除く): 92822000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 4691, 7120, 9382, 14240, 18764, 23455, 37528, 46910, 75056, 93820, 150112, 187640, 375280, 417499, 750560, 834998, 1669996, 2087495, 3339992, 4174990, 6679984, 8349980, 13359968, 16699960, 33399920, 66799840]

約数ペア:

[(1, 66799840), (2, 33399920), (4, 16699960), (5, 13359968), (8, 8349980), (10, 6679984), (16, 4174990), (20, 3339992), (32, 2087495), (40, 1669996), (80, 834998), (89, 750560), (160, 417499), (178, 375280), (356, 187640), (445, 150112), (712, 93820), (890, 75056), (1424, 46910), (1780, 37528), (2848, 23455), (3560, 18764), (4691, 14240), (7120, 9382)]