20333768

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:127

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 31920952

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 31, 34, 52, 53, 56, 62, 68, 91, 104, 106, 119, 124, 136, 182, 212, 217, 221, 238, 248, 364, 371, 403, 424, 434, 442, 476, 527, 689, 728, 742, 806, 868, 884, 901, 952, 1054, 1378, 1484, 1547, 1612, 1643, 1736, 1768, 1802, 2108, 2756, 2821, 2968, 3094, 3224, 3286, 3604, 3689, 4216, 4823, 5512, 5642, 6188, 6307, 6572, 6851, 7208, 7378, 9646, 11284, 11501, 11713, 12376, 12614, 13144, 13702, 14756, 19292, 21359, 22568, 23002, 23426, 25228, 27404, 27931, 29512, 38584, 42718, 46004, 46852, 47957, 50456, 54808, 55862, 81991, 85436, 92008, 93704, 95914, 111724, 149513, 163982, 170872, 191828, 195517, 223448, 299026, 327964, 363103, 383656, 391034, 598052, 655928, 726206, 782068, 1196104, 1452412, 1564136, 2541721, 2904824, 5083442, 10166884, 20333768]

約数ペア:

[(1, 20333768), (2, 10166884), (4, 5083442), (7, 2904824), (8, 2541721), (13, 1564136), (14, 1452412), (17, 1196104), (26, 782068), (28, 726206), (31, 655928), (34, 598052), (52, 391034), (53, 383656), (56, 363103), (62, 327964), (68, 299026), (91, 223448), (104, 195517), (106, 191828), (119, 170872), (124, 163982), (136, 149513), (182, 111724), (212, 95914), (217, 93704), (221, 92008), (238, 85436), (248, 81991), (364, 55862), (371, 54808), (403, 50456), (424, 47957), (434, 46852), (442, 46004), (476, 42718), (527, 38584), (689, 29512), (728, 27931), (742, 27404), (806, 25228), (868, 23426), (884, 23002), (901, 22568), (952, 21359), (1054, 19292), (1378, 14756), (1484, 13702), (1547, 13144), (1612, 12614), (1643, 12376), (1736, 11713), (1768, 11501), (1802, 11284), (2108, 9646), (2756, 7378), (2821, 7208), (2968, 6851), (3094, 6572), (3224, 6307), (3286, 6188), (3604, 5642), (3689, 5512), (4216, 4823)]