68916280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 163114560

約数和(自身を除く): 94198280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 173, 184, 230, 346, 433, 460, 692, 865, 866, 920, 1384, 1730, 1732, 2165, 3460, 3464, 3979, 4330, 6920, 7958, 8660, 9959, 15916, 17320, 19895, 19918, 31832, 39790, 39836, 49795, 74909, 79580, 79672, 99590, 149818, 159160, 199180, 299636, 374545, 398360, 599272, 749090, 1498180, 1722907, 2996360, 3445814, 6891628, 8614535, 13783256, 17229070, 34458140, 68916280]

約数ペア:

[(1, 68916280), (2, 34458140), (4, 17229070), (5, 13783256), (8, 8614535), (10, 6891628), (20, 3445814), (23, 2996360), (40, 1722907), (46, 1498180), (92, 749090), (115, 599272), (173, 398360), (184, 374545), (230, 299636), (346, 199180), (433, 159160), (460, 149818), (692, 99590), (865, 79672), (866, 79580), (920, 74909), (1384, 49795), (1730, 39836), (1732, 39790), (2165, 31832), (3460, 19918), (3464, 19895), (3979, 17320), (4330, 15916), (6920, 9959), (7958, 8660)]