256643280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{356449}}^1$

素因数の和:356468

約数の個数: 60

約数和(自身を含む): 861896100

約数和(自身を除く): 605252820

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 356449, 712898, 1069347, 1425796, 1782245, 2138694, 2851592, 3208041, 3564490, 4277388, 5346735, 5703184, 6416082, 7128980, 8554776, 10693470, 12832164, 14257960, 16040205, 17109552, 21386940, 25664328, 28515920, 32080410, 42773880, 51328656, 64160820, 85547760, 128321640, 256643280]

約数ペア:

[(1, 256643280), (2, 128321640), (3, 85547760), (4, 64160820), (5, 51328656), (6, 42773880), (8, 32080410), (9, 28515920), (10, 25664328), (12, 21386940), (15, 17109552), (16, 16040205), (18, 14257960), (20, 12832164), (24, 10693470), (30, 8554776), (36, 7128980), (40, 6416082), (45, 5703184), (48, 5346735), (60, 4277388), (72, 3564490), (80, 3208041), (90, 2851592), (120, 2138694), (144, 1782245), (180, 1425796), (240, 1069347), (360, 712898), (720, 356449)]