1638468

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:418

約数の個数: 60

約数和(自身を含む): 4624620

約数和(自身を除く): 2986152

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 324, 351, 389, 468, 702, 778, 1053, 1167, 1404, 1556, 2106, 2334, 3501, 4212, 4668, 5057, 7002, 10114, 10503, 14004, 15171, 20228, 21006, 30342, 31509, 42012, 45513, 60684, 63018, 91026, 126036, 136539, 182052, 273078, 409617, 546156, 819234, 1638468]

約数ペア:

[(1, 1638468), (2, 819234), (3, 546156), (4, 409617), (6, 273078), (9, 182052), (12, 136539), (13, 126036), (18, 91026), (26, 63018), (27, 60684), (36, 45513), (39, 42012), (52, 31509), (54, 30342), (78, 21006), (81, 20228), (108, 15171), (117, 14004), (156, 10503), (162, 10114), (234, 7002), (324, 5057), (351, 4668), (389, 4212), (468, 3501), (702, 2334), (778, 2106), (1053, 1556), (1167, 1404)]