4948640

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 11825352

約数和(自身を除く): 6876712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 197, 314, 394, 628, 785, 788, 985, 1256, 1570, 1576, 1970, 2512, 3140, 3152, 3940, 5024, 6280, 6304, 7880, 12560, 15760, 25120, 30929, 31520, 61858, 123716, 154645, 247432, 309290, 494864, 618580, 989728, 1237160, 2474320, 4948640]

約数ペア:

[(1, 4948640), (2, 2474320), (4, 1237160), (5, 989728), (8, 618580), (10, 494864), (16, 309290), (20, 247432), (32, 154645), (40, 123716), (80, 61858), (157, 31520), (160, 30929), (197, 25120), (314, 15760), (394, 12560), (628, 7880), (785, 6304), (788, 6280), (985, 5024), (1256, 3940), (1570, 3152), (1576, 3140), (1970, 2512)]