20801801008

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68426977}}^1$

素因数の和:68427004

約数の個数: 20

約数和(自身を含む): 42424726360

約数和(自身を除く): 21622925352

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68426977, 136853954, 273707908, 547415816, 1094831632, 1300112563, 2600225126, 5200450252, 10400900504, 20801801008]

約数ペア:

[(1, 20801801008), (2, 10400900504), (4, 5200450252), (8, 2600225126), (16, 1300112563), (19, 1094831632), (38, 547415816), (76, 273707908), (152, 136853954), (304, 68426977)]