66861520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{75979}}^1$

素因数の和:76003

約数の個数: 40

約数和(自身を含む): 169587360

約数和(自身を除く): 102725840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 75979, 151958, 303916, 379895, 607832, 759790, 835769, 1215664, 1519580, 1671538, 3039160, 3343076, 4178845, 6078320, 6686152, 8357690, 13372304, 16715380, 33430760, 66861520]

約数ペア:

[(1, 66861520), (2, 33430760), (4, 16715380), (5, 13372304), (8, 8357690), (10, 6686152), (11, 6078320), (16, 4178845), (20, 3343076), (22, 3039160), (40, 1671538), (44, 1519580), (55, 1215664), (80, 835769), (88, 759790), (110, 607832), (176, 379895), (220, 303916), (440, 151958), (880, 75979)]