66904720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11779}}^1$

素因数の和:11863

約数の個数: 40

約数和(自身を含む): 157757760

約数和(自身を除く): 90853040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 11779, 23558, 47116, 58895, 94232, 117790, 188464, 235580, 471160, 836309, 942320, 1672618, 3345236, 4181545, 6690472, 8363090, 13380944, 16726180, 33452360, 66904720]

約数ペア:

[(1, 66904720), (2, 33452360), (4, 16726180), (5, 13380944), (8, 8363090), (10, 6690472), (16, 4181545), (20, 3345236), (40, 1672618), (71, 942320), (80, 836309), (142, 471160), (284, 235580), (355, 188464), (568, 117790), (710, 94232), (1136, 58895), (1420, 47116), (2840, 23558), (5680, 11779)]