18940272

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 53329920

約数和(自身を除く): 34389648

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 127, 156, 208, 239, 254, 312, 381, 478, 508, 624, 717, 762, 956, 1016, 1434, 1524, 1651, 1912, 2032, 2868, 3048, 3107, 3302, 3824, 4953, 5736, 6096, 6214, 6604, 9321, 9906, 11472, 12428, 13208, 18642, 19812, 24856, 26416, 30353, 37284, 39624, 49712, 60706, 74568, 79248, 91059, 121412, 149136, 182118, 242824, 364236, 394589, 485648, 728472, 789178, 1183767, 1456944, 1578356, 2367534, 3156712, 4735068, 6313424, 9470136, 18940272]

約数ペア:

[(1, 18940272), (2, 9470136), (3, 6313424), (4, 4735068), (6, 3156712), (8, 2367534), (12, 1578356), (13, 1456944), (16, 1183767), (24, 789178), (26, 728472), (39, 485648), (48, 394589), (52, 364236), (78, 242824), (104, 182118), (127, 149136), (156, 121412), (208, 91059), (239, 79248), (254, 74568), (312, 60706), (381, 49712), (478, 39624), (508, 37284), (624, 30353), (717, 26416), (762, 24856), (956, 19812), (1016, 18642), (1434, 13208), (1524, 12428), (1651, 11472), (1912, 9906), (2032, 9321), (2868, 6604), (3048, 6214), (3107, 6096), (3302, 5736), (3824, 4953)]