18689390

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 34642080

約数和(自身を除く): 15952690

約数列:

[1, 2, 5, 10, 53, 106, 179, 197, 265, 358, 394, 530, 895, 985, 1790, 1970, 9487, 10441, 18974, 20882, 35263, 47435, 52205, 70526, 94870, 104410, 176315, 352630, 1868939, 3737878, 9344695, 18689390]

約数ペア:

[(1, 18689390), (2, 9344695), (5, 3737878), (10, 1868939), (53, 352630), (106, 176315), (179, 104410), (197, 94870), (265, 70526), (358, 52205), (394, 47435), (530, 35263), (895, 20882), (985, 18974), (1790, 10441), (1970, 9487)]