256968

素因数分解:

$2^3\times 3^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 720720

約数和(自身を除く): 463752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 43, 72, 83, 86, 129, 166, 172, 249, 258, 332, 344, 387, 498, 516, 664, 747, 774, 996, 1032, 1494, 1548, 1992, 2988, 3096, 3569, 5976, 7138, 10707, 14276, 21414, 28552, 32121, 42828, 64242, 85656, 128484, 256968]

約数ペア:

[(1, 256968), (2, 128484), (3, 85656), (4, 64242), (6, 42828), (8, 32121), (9, 28552), (12, 21414), (18, 14276), (24, 10707), (36, 7138), (43, 5976), (72, 3569), (83, 3096), (86, 2988), (129, 1992), (166, 1548), (172, 1494), (249, 1032), (258, 996), (332, 774), (344, 747), (387, 664), (498, 516)]