138141520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{156979}}^1$

素因数の和:157003

約数の個数: 40

約数和(自身を含む): 350379360

約数和(自身を除く): 212237840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 156979, 313958, 627916, 784895, 1255832, 1569790, 1726769, 2511664, 3139580, 3453538, 6279160, 6907076, 8633845, 12558320, 13814152, 17267690, 27628304, 34535380, 69070760, 138141520]

約数ペア:

[(1, 138141520), (2, 69070760), (4, 34535380), (5, 27628304), (8, 17267690), (10, 13814152), (11, 12558320), (16, 8633845), (20, 6907076), (22, 6279160), (40, 3453538), (44, 3139580), (55, 2511664), (80, 1726769), (88, 1569790), (110, 1255832), (176, 784895), (220, 627916), (440, 313958), (880, 156979)]