65918960

素因数分解:

$2^4\times 5^1\times {\mathrm{743}}^1\times {\mathrm{1109}}^1$

素因数の和:1865

約数の個数: 40

約数和(自身を含む): 153606240

約数和(自身を除く): 87687280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 743, 1109, 1486, 2218, 2972, 3715, 4436, 5545, 5944, 7430, 8872, 11090, 11888, 14860, 17744, 22180, 29720, 44360, 59440, 88720, 823987, 1647974, 3295948, 4119935, 6591896, 8239870, 13183792, 16479740, 32959480, 65918960]

約数ペア:

[(1, 65918960), (2, 32959480), (4, 16479740), (5, 13183792), (8, 8239870), (10, 6591896), (16, 4119935), (20, 3295948), (40, 1647974), (80, 823987), (743, 88720), (1109, 59440), (1486, 44360), (2218, 29720), (2972, 22180), (3715, 17744), (4436, 14860), (5545, 11888), (5944, 11090), (7430, 8872)]