128978878

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{613}}^1$

素因数の和:761

約数の個数: 48

約数和(自身を含む): 239386320

約数和(自身を除く): 110407442

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 113, 133, 226, 266, 613, 791, 931, 1226, 1582, 1862, 2147, 4291, 4294, 5537, 8582, 11074, 11647, 15029, 23294, 30037, 30058, 60074, 69269, 81529, 105203, 138538, 163058, 210406, 484883, 570703, 969766, 1141406, 1316111, 2632222, 3394181, 6788362, 9212777, 18425554, 64489439, 128978878]

約数ペア:

[(1, 128978878), (2, 64489439), (7, 18425554), (14, 9212777), (19, 6788362), (38, 3394181), (49, 2632222), (98, 1316111), (113, 1141406), (133, 969766), (226, 570703), (266, 484883), (613, 210406), (791, 163058), (931, 138538), (1226, 105203), (1582, 81529), (1862, 69269), (2147, 60074), (4291, 30058), (4294, 30037), (5537, 23294), (8582, 15029), (11074, 11647)]