291260240

素因数分解:

$2^4\times 5^1\times {\mathrm{3640753}}^1$

素因数の和:3640766

約数の個数: 20

約数和(自身を含む): 677180244

約数和(自身を除く): 385920004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640753, 7281506, 14563012, 18203765, 29126024, 36407530, 58252048, 72815060, 145630120, 291260240]

約数ペア:

[(1, 291260240), (2, 145630120), (4, 72815060), (5, 58252048), (8, 36407530), (10, 29126024), (16, 18203765), (20, 14563012), (40, 7281506), (80, 3640753)]