388701639

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 631910400

約数和(自身を除く): 243208761

約数列:

[1, 3, 9, 19, 27, 43, 57, 67, 129, 171, 201, 263, 387, 513, 603, 789, 817, 1161, 1273, 1809, 2367, 2451, 2881, 3819, 4997, 7101, 7353, 8643, 11309, 11457, 14991, 17621, 22059, 25929, 33927, 34371, 44973, 52863, 54739, 77787, 101781, 134919, 158589, 164217, 214871, 305343, 334799, 475767, 492651, 644613, 757703, 1004397, 1477953, 1933839, 2273109, 3013191, 5801517, 6819327, 9039573, 14396357, 20457981, 43189071, 129567213, 388701639]

約数ペア:

[(1, 388701639), (3, 129567213), (9, 43189071), (19, 20457981), (27, 14396357), (43, 9039573), (57, 6819327), (67, 5801517), (129, 3013191), (171, 2273109), (201, 1933839), (263, 1477953), (387, 1004397), (513, 757703), (603, 644613), (789, 492651), (817, 475767), (1161, 334799), (1273, 305343), (1809, 214871), (2367, 164217), (2451, 158589), (2881, 134919), (3819, 101781), (4997, 77787), (7101, 54739), (7353, 52863), (8643, 44973), (11309, 34371), (11457, 33927), (14991, 25929), (17621, 22059)]