71721808

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{235927}}^1$

素因数の和:235954

約数の個数: 20

約数和(自身を含む): 146275360

約数和(自身を除く): 74553552

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 235927, 471854, 943708, 1887416, 3774832, 4482613, 8965226, 17930452, 35860904, 71721808]

約数ペア:

[(1, 71721808), (2, 35860904), (4, 17930452), (8, 8965226), (16, 4482613), (19, 3774832), (38, 1887416), (76, 943708), (152, 471854), (304, 235927)]