217788610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 444165120

約数和(自身を除く): 226376510

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 169, 230, 299, 338, 431, 598, 845, 862, 1495, 1690, 2155, 2197, 2990, 3887, 4310, 4394, 5603, 7774, 9913, 10985, 11206, 19435, 19826, 21970, 28015, 38870, 49565, 50531, 56030, 72839, 99130, 101062, 128869, 145678, 252655, 257738, 364195, 505310, 644345, 728390, 946907, 1288690, 1675297, 1893814, 3350594, 4734535, 8376485, 9469070, 16752970, 21778861, 43557722, 108894305, 217788610]

約数ペア:

[(1, 217788610), (2, 108894305), (5, 43557722), (10, 21778861), (13, 16752970), (23, 9469070), (26, 8376485), (46, 4734535), (65, 3350594), (115, 1893814), (130, 1675297), (169, 1288690), (230, 946907), (299, 728390), (338, 644345), (431, 505310), (598, 364195), (845, 257738), (862, 252655), (1495, 145678), (1690, 128869), (2155, 101062), (2197, 99130), (2990, 72839), (3887, 56030), (4310, 50531), (4394, 49565), (5603, 38870), (7774, 28015), (9913, 21970), (10985, 19826), (11206, 19435)]