138654380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{407807}}^1$

素因数の和:407833

約数の個数: 24

約数和(自身を含む): 308302848

約数和(自身を除く): 169648468

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 407807, 815614, 1631228, 2039035, 4078070, 6932719, 8156140, 13865438, 27730876, 34663595, 69327190, 138654380]

約数ペア:

[(1, 138654380), (2, 69327190), (4, 34663595), (5, 27730876), (10, 13865438), (17, 8156140), (20, 6932719), (34, 4078070), (68, 2039035), (85, 1631228), (170, 815614), (340, 407807)]