128840881477

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{47389}}^1$

素因数の和:47522

約数の個数: 64

約数和(自身を含む): 178192465920

約数和(自身を除く): 49351584443

約数列:

[1, 7, 11, 17, 31, 67, 77, 119, 187, 217, 341, 469, 527, 737, 1139, 1309, 2077, 2387, 3689, 5159, 5797, 7973, 12529, 14539, 22847, 35309, 40579, 47389, 87703, 159929, 247163, 331723, 388399, 521279, 805613, 1469059, 2718793, 3175063, 3648953, 5639291, 8861743, 10283413, 16159649, 22225441, 24974003, 34925693, 53976071, 62032201, 98426953, 113117543, 174818021, 244479851, 274714033, 377832497, 593736781, 688988671, 1082696483, 1673258201, 1922998231, 4156157467, 7578875381, 11712807407, 18405840211, 128840881477]

約数ペア:

[(1, 128840881477), (7, 18405840211), (11, 11712807407), (17, 7578875381), (31, 4156157467), (67, 1922998231), (77, 1673258201), (119, 1082696483), (187, 688988671), (217, 593736781), (341, 377832497), (469, 274714033), (527, 244479851), (737, 174818021), (1139, 113117543), (1309, 98426953), (2077, 62032201), (2387, 53976071), (3689, 34925693), (5159, 24974003), (5797, 22225441), (7973, 16159649), (12529, 10283413), (14539, 8861743), (22847, 5639291), (35309, 3648953), (40579, 3175063), (47389, 2718793), (87703, 1469059), (159929, 805613), (247163, 521279), (331723, 388399)]