208715152

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{686563}}^1$

素因数の和:686590

約数の個数: 20

約数和(自身を含む): 425669680

約数和(自身を除く): 216954528

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 686563, 1373126, 2746252, 5492504, 10985008, 13044697, 26089394, 52178788, 104357576, 208715152]

約数ペア:

[(1, 208715152), (2, 104357576), (4, 52178788), (8, 26089394), (16, 13044697), (19, 10985008), (38, 5492504), (76, 2746252), (152, 1373126), (304, 686563)]