256900120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{136649}}^1$

素因数の和:136707

約数の個数: 32

約数和(自身を含む): 590328000

約数和(自身を除く): 333427880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 136649, 273298, 546596, 683245, 1093192, 1366490, 2732980, 5465960, 6422503, 12845006, 25690012, 32112515, 51380024, 64225030, 128450060, 256900120]

約数ペア:

[(1, 256900120), (2, 128450060), (4, 64225030), (5, 51380024), (8, 32112515), (10, 25690012), (20, 12845006), (40, 6422503), (47, 5465960), (94, 2732980), (188, 1366490), (235, 1093192), (376, 683245), (470, 546596), (940, 273298), (1880, 136649)]