16800000012

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{293}}^1\times {\mathrm{20161}}^1$

素因数の和:20543

約数の個数: 72

約数和(自身を含む): 43153131840

約数和(自身を除く): 26353131828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 293, 316, 474, 586, 711, 879, 948, 1172, 1422, 1758, 2637, 2844, 3516, 5274, 10548, 20161, 23147, 40322, 46294, 60483, 69441, 80644, 92588, 120966, 138882, 181449, 208323, 241932, 277764, 362898, 416646, 725796, 833292, 1592719, 3185438, 4778157, 5907173, 6370876, 9556314, 11814346, 14334471, 17721519, 19112628, 23628692, 28668942, 35443038, 53164557, 57337884, 70886076, 106329114, 212658228, 466666667, 933333334, 1400000001, 1866666668, 2800000002, 4200000003, 5600000004, 8400000006, 16800000012]

約数ペア:

[(1, 16800000012), (2, 8400000006), (3, 5600000004), (4, 4200000003), (6, 2800000002), (9, 1866666668), (12, 1400000001), (18, 933333334), (36, 466666667), (79, 212658228), (158, 106329114), (237, 70886076), (293, 57337884), (316, 53164557), (474, 35443038), (586, 28668942), (711, 23628692), (879, 19112628), (948, 17721519), (1172, 14334471), (1422, 11814346), (1758, 9556314), (2637, 6370876), (2844, 5907173), (3516, 4778157), (5274, 3185438), (10548, 1592719), (20161, 833292), (23147, 725796), (40322, 416646), (46294, 362898), (60483, 277764), (69441, 241932), (80644, 208323), (92588, 181449), (120966, 138882)]