71537680

素因数分解:

$2^4\times 5^1\times {\mathrm{894221}}^1$

素因数の和:894234

約数の個数: 20

約数和(自身を含む): 166325292

約数和(自身を除く): 94787612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 894221, 1788442, 3576884, 4471105, 7153768, 8942210, 14307536, 17884420, 35768840, 71537680]

約数ペア:

[(1, 71537680), (2, 35768840), (4, 17884420), (5, 14307536), (8, 8942210), (10, 7153768), (16, 4471105), (20, 3576884), (40, 1788442), (80, 894221)]