66952720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19463}}^1$

素因数の和:19519

約数の個数: 40

約数和(自身を含む): 159293376

約数和(自身を除く): 92340656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19463, 38926, 77852, 97315, 155704, 194630, 311408, 389260, 778520, 836909, 1557040, 1673818, 3347636, 4184545, 6695272, 8369090, 13390544, 16738180, 33476360, 66952720]

約数ペア:

[(1, 66952720), (2, 33476360), (4, 16738180), (5, 13390544), (8, 8369090), (10, 6695272), (16, 4184545), (20, 3347636), (40, 1673818), (43, 1557040), (80, 836909), (86, 778520), (172, 389260), (215, 311408), (344, 194630), (430, 155704), (688, 97315), (860, 77852), (1720, 38926), (3440, 19463)]