20531628

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2309}}^1$

素因数の和:2351

約数の個数: 72

約数和(自身を含む): 58858800

約数和(自身を除く): 38327172

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2309, 2964, 4446, 4618, 6927, 8892, 9236, 13854, 20781, 27708, 30017, 41562, 43871, 60034, 83124, 87742, 90051, 120068, 131613, 175484, 180102, 263226, 270153, 360204, 394839, 526452, 540306, 570323, 789678, 1080612, 1140646, 1579356, 1710969, 2281292, 3421938, 5132907, 6843876, 10265814, 20531628]

約数ペア:

[(1, 20531628), (2, 10265814), (3, 6843876), (4, 5132907), (6, 3421938), (9, 2281292), (12, 1710969), (13, 1579356), (18, 1140646), (19, 1080612), (26, 789678), (36, 570323), (38, 540306), (39, 526452), (52, 394839), (57, 360204), (76, 270153), (78, 263226), (114, 180102), (117, 175484), (156, 131613), (171, 120068), (228, 90051), (234, 87742), (247, 83124), (342, 60034), (468, 43871), (494, 41562), (684, 30017), (741, 27708), (988, 20781), (1482, 13854), (2223, 9236), (2309, 8892), (2964, 6927), (4446, 4618)]