19663670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{419}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 40325040

約数和(自身を除く): 20661370

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 361, 419, 494, 722, 838, 1235, 1805, 2095, 2470, 3610, 4190, 4693, 5447, 7961, 9386, 10894, 15922, 23465, 27235, 39805, 46930, 54470, 79610, 103493, 151259, 206986, 302518, 517465, 756295, 1034930, 1512590, 1966367, 3932734, 9831835, 19663670]

約数ペア:

[(1, 19663670), (2, 9831835), (5, 3932734), (10, 1966367), (13, 1512590), (19, 1034930), (26, 756295), (38, 517465), (65, 302518), (95, 206986), (130, 151259), (190, 103493), (247, 79610), (361, 54470), (419, 46930), (494, 39805), (722, 27235), (838, 23465), (1235, 15922), (1805, 10894), (2095, 9386), (2470, 7961), (3610, 5447), (4190, 4693)]