105820520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1033}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 257962320

約数和(自身を除く): 152141800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 260, 394, 520, 788, 985, 1033, 1576, 1970, 2066, 2561, 3940, 4132, 5122, 5165, 7880, 8264, 10244, 10330, 12805, 13429, 20488, 20660, 25610, 26858, 41320, 51220, 53716, 67145, 102440, 107432, 134290, 203501, 268580, 407002, 537160, 814004, 1017505, 1628008, 2035010, 2645513, 4070020, 5291026, 8140040, 10582052, 13227565, 21164104, 26455130, 52910260, 105820520]

約数ペア:

[(1, 105820520), (2, 52910260), (4, 26455130), (5, 21164104), (8, 13227565), (10, 10582052), (13, 8140040), (20, 5291026), (26, 4070020), (40, 2645513), (52, 2035010), (65, 1628008), (104, 1017505), (130, 814004), (197, 537160), (260, 407002), (394, 268580), (520, 203501), (788, 134290), (985, 107432), (1033, 102440), (1576, 67145), (1970, 53716), (2066, 51220), (2561, 41320), (3940, 26858), (4132, 25610), (5122, 20660), (5165, 20488), (7880, 13429), (8264, 12805), (10244, 10330)]