66582640

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1709}}^1$

素因数の和:2209

約数の個数: 40

約数和(自身を含む): 155213280

約数和(自身を除く): 88630640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1709, 1948, 2435, 3418, 3896, 4870, 6836, 7792, 8545, 9740, 13672, 17090, 19480, 27344, 34180, 38960, 68360, 136720, 832283, 1664566, 3329132, 4161415, 6658264, 8322830, 13316528, 16645660, 33291320, 66582640]

約数ペア:

[(1, 66582640), (2, 33291320), (4, 16645660), (5, 13316528), (8, 8322830), (10, 6658264), (16, 4161415), (20, 3329132), (40, 1664566), (80, 832283), (487, 136720), (974, 68360), (1709, 38960), (1948, 34180), (2435, 27344), (3418, 19480), (3896, 17090), (4870, 13672), (6836, 9740), (7792, 8545)]