306123668

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{211997}}^1$

素因数の和:212039

約数の個数: 18

約数和(自身を含む): 565398666

約数和(自身を除く): 259274998

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 211997, 423994, 847988, 4027943, 8055886, 16111772, 76530917, 153061834, 306123668]

約数ペア:

[(1, 306123668), (2, 153061834), (4, 76530917), (19, 16111772), (38, 8055886), (76, 4027943), (361, 847988), (722, 423994), (1444, 211997)]