78944870

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{19687}}^1$

素因数の和:20095

約数の個数: 16

約数和(自身を含む): 142462368

約数和(自身を除く): 63517498

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 19687, 39374, 98435, 196870, 7894487, 15788974, 39472435, 78944870]

約数ペア:

[(1, 78944870), (2, 39472435), (5, 15788974), (10, 7894487), (401, 196870), (802, 98435), (2005, 39374), (4010, 19687)]