205121456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{754123}}^1$

素因数の和:754148

約数の個数: 20

約数和(自身を含む): 420801192

約数和(自身を除く): 215679736

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 754123, 1508246, 3016492, 6032984, 12065968, 12820091, 25640182, 51280364, 102560728, 205121456]

約数ペア:

[(1, 205121456), (2, 102560728), (4, 51280364), (8, 25640182), (16, 12820091), (17, 12065968), (34, 6032984), (68, 3016492), (136, 1508246), (272, 754123)]