221494520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{2207}}^1$

素因数の和:2424

約数の個数: 64

約数和(自身を含む): 539723520

約数和(自身を除く): 318229000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 386, 520, 772, 965, 1544, 1930, 2207, 2509, 3860, 4414, 5018, 7720, 8828, 10036, 11035, 12545, 17656, 20072, 22070, 25090, 28691, 44140, 50180, 57382, 88280, 100360, 114764, 143455, 229528, 286910, 425951, 573820, 851902, 1147640, 1703804, 2129755, 3407608, 4259510, 5537363, 8519020, 11074726, 17038040, 22149452, 27686815, 44298904, 55373630, 110747260, 221494520]

約数ペア:

[(1, 221494520), (2, 110747260), (4, 55373630), (5, 44298904), (8, 27686815), (10, 22149452), (13, 17038040), (20, 11074726), (26, 8519020), (40, 5537363), (52, 4259510), (65, 3407608), (104, 2129755), (130, 1703804), (193, 1147640), (260, 851902), (386, 573820), (520, 425951), (772, 286910), (965, 229528), (1544, 143455), (1930, 114764), (2207, 100360), (2509, 88280), (3860, 57382), (4414, 50180), (5018, 44140), (7720, 28691), (8828, 25090), (10036, 22070), (11035, 20072), (12545, 17656)]