2556488

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 5586000

約数和(自身を除く): 3029512

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 121, 139, 152, 209, 242, 278, 418, 484, 556, 836, 968, 1112, 1529, 1672, 2299, 2641, 3058, 4598, 5282, 6116, 9196, 10564, 12232, 16819, 18392, 21128, 29051, 33638, 58102, 67276, 116204, 134552, 232408, 319561, 639122, 1278244, 2556488]

約数ペア:

[(1, 2556488), (2, 1278244), (4, 639122), (8, 319561), (11, 232408), (19, 134552), (22, 116204), (38, 67276), (44, 58102), (76, 33638), (88, 29051), (121, 21128), (139, 18392), (152, 16819), (209, 12232), (242, 10564), (278, 9196), (418, 6116), (484, 5282), (556, 4598), (836, 3058), (968, 2641), (1112, 2299), (1529, 1672)]