256960561

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 324434880

約数和(自身を除く): 67474319

約数列:

[1, 11, 13, 29, 43, 121, 131, 143, 319, 377, 473, 559, 1247, 1441, 1573, 1703, 3509, 3799, 4147, 5203, 5633, 6149, 13717, 15851, 16211, 18733, 41789, 45617, 49387, 61963, 67639, 73229, 150887, 163357, 178321, 206063, 459679, 543257, 681593, 805519, 1796927, 1961531, 2123641, 5975827, 8860709, 19766197, 23360051, 256960561]

約数ペア:

[(1, 256960561), (11, 23360051), (13, 19766197), (29, 8860709), (43, 5975827), (121, 2123641), (131, 1961531), (143, 1796927), (319, 805519), (377, 681593), (473, 543257), (559, 459679), (1247, 206063), (1441, 178321), (1573, 163357), (1703, 150887), (3509, 73229), (3799, 67639), (4147, 61963), (5203, 49387), (5633, 45617), (6149, 41789), (13717, 18733), (15851, 16211)]