66154640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19231}}^1$

素因数の和:19287

約数の個数: 40

約数和(自身を含む): 157394688

約数和(自身を除く): 91240048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19231, 38462, 76924, 96155, 153848, 192310, 307696, 384620, 769240, 826933, 1538480, 1653866, 3307732, 4134665, 6615464, 8269330, 13230928, 16538660, 33077320, 66154640]

約数ペア:

[(1, 66154640), (2, 33077320), (4, 16538660), (5, 13230928), (8, 8269330), (10, 6615464), (16, 4134665), (20, 3307732), (40, 1653866), (43, 1538480), (80, 826933), (86, 769240), (172, 384620), (215, 307696), (344, 192310), (430, 153848), (688, 96155), (860, 76924), (1720, 38462), (3440, 19231)]