1640890718

素因数分解:

$2^1\times {\mathrm{199}}^1\times {\mathrm{1321}}^1\times {\mathrm{3121}}^1$

素因数の和:4643

約数の個数: 16

約数和(自身を含む): 2476370400

約数和(自身を除く): 835479682

約数列:

[1, 2, 199, 398, 1321, 2642, 3121, 6242, 262879, 525758, 621079, 1242158, 4122841, 8245682, 820445359, 1640890718]

約数ペア:

[(1, 1640890718), (2, 820445359), (199, 8245682), (398, 4122841), (1321, 1242158), (2642, 621079), (3121, 525758), (6242, 262879)]