15196820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 33374208

約数和(自身を除く): 18177388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 193, 254, 310, 386, 508, 620, 635, 772, 965, 1270, 1930, 2540, 3860, 3937, 5983, 7874, 11966, 15748, 19685, 23932, 24511, 29915, 39370, 49022, 59830, 78740, 98044, 119660, 122555, 245110, 490220, 759841, 1519682, 3039364, 3799205, 7598410, 15196820]

約数ペア:

[(1, 15196820), (2, 7598410), (4, 3799205), (5, 3039364), (10, 1519682), (20, 759841), (31, 490220), (62, 245110), (124, 122555), (127, 119660), (155, 98044), (193, 78740), (254, 59830), (310, 49022), (386, 39370), (508, 29915), (620, 24511), (635, 23932), (772, 19685), (965, 15748), (1270, 11966), (1930, 7874), (2540, 5983), (3860, 3937)]