1280996816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{250979}}^1$

素因数の和:251027

約数の個数: 40

約数和(自身を含む): 2800936800

約数和(自身を除く): 1519939984

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 5104, 250979, 501958, 1003916, 2007832, 2760769, 4015664, 5521538, 7278391, 11043076, 14556782, 22086152, 29113564, 44172304, 58227128, 80062301, 116454256, 160124602, 320249204, 640498408, 1280996816]

約数ペア:

[(1, 1280996816), (2, 640498408), (4, 320249204), (8, 160124602), (11, 116454256), (16, 80062301), (22, 58227128), (29, 44172304), (44, 29113564), (58, 22086152), (88, 14556782), (116, 11043076), (176, 7278391), (232, 5521538), (319, 4015664), (464, 2760769), (638, 2007832), (1276, 1003916), (2552, 501958), (5104, 250979)]