172958120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 400308480

約数和(自身を除く): 227350360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 197, 235, 376, 394, 467, 470, 788, 934, 940, 985, 1576, 1868, 1880, 1970, 2335, 3736, 3940, 4670, 7880, 9259, 9340, 18518, 18680, 21949, 37036, 43898, 46295, 74072, 87796, 91999, 92590, 109745, 175592, 183998, 185180, 219490, 367996, 370360, 438980, 459995, 735992, 877960, 919990, 1839980, 3679960, 4323953, 8647906, 17295812, 21619765, 34591624, 43239530, 86479060, 172958120]

約数ペア:

[(1, 172958120), (2, 86479060), (4, 43239530), (5, 34591624), (8, 21619765), (10, 17295812), (20, 8647906), (40, 4323953), (47, 3679960), (94, 1839980), (188, 919990), (197, 877960), (235, 735992), (376, 459995), (394, 438980), (467, 370360), (470, 367996), (788, 219490), (934, 185180), (940, 183998), (985, 175592), (1576, 109745), (1868, 92590), (1880, 91999), (1970, 87796), (2335, 74072), (3736, 46295), (3940, 43898), (4670, 37036), (7880, 21949), (9259, 18680), (9340, 18518)]