640017356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{26399}}^1$

素因数の和:26462

約数の個数: 48

約数和(自身を含む): 1330560000

約数和(自身を除く): 690542644

約数列:

[1, 2, 4, 11, 19, 22, 29, 38, 44, 58, 76, 116, 209, 319, 418, 551, 638, 836, 1102, 1276, 2204, 6061, 12122, 24244, 26399, 52798, 105596, 290389, 501581, 580778, 765571, 1003162, 1161556, 1531142, 2006324, 3062284, 5517391, 8421281, 11034782, 14545849, 16842562, 22069564, 29091698, 33685124, 58183396, 160004339, 320008678, 640017356]

約数ペア:

[(1, 640017356), (2, 320008678), (4, 160004339), (11, 58183396), (19, 33685124), (22, 29091698), (29, 22069564), (38, 16842562), (44, 14545849), (58, 11034782), (76, 8421281), (116, 5517391), (209, 3062284), (319, 2006324), (418, 1531142), (551, 1161556), (638, 1003162), (836, 765571), (1102, 580778), (1276, 501581), (2204, 290389), (6061, 105596), (12122, 52798), (24244, 26399)]