206077820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^2\times {\mathrm{127}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 475743744

約数和(自身を除く): 269665924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 127, 130, 158, 254, 260, 316, 395, 508, 635, 790, 1027, 1270, 1580, 1651, 2054, 2540, 3302, 4108, 5135, 6241, 6604, 8255, 10033, 10270, 12482, 16510, 20066, 20540, 24964, 31205, 33020, 40132, 50165, 62410, 81133, 100330, 124820, 130429, 162266, 200660, 260858, 324532, 405665, 521716, 652145, 792607, 811330, 1304290, 1585214, 1622660, 2608580, 3170428, 3963035, 7926070, 10303891, 15852140, 20607782, 41215564, 51519455, 103038910, 206077820]

約数ペア:

[(1, 206077820), (2, 103038910), (4, 51519455), (5, 41215564), (10, 20607782), (13, 15852140), (20, 10303891), (26, 7926070), (52, 3963035), (65, 3170428), (79, 2608580), (127, 1622660), (130, 1585214), (158, 1304290), (254, 811330), (260, 792607), (316, 652145), (395, 521716), (508, 405665), (635, 324532), (790, 260858), (1027, 200660), (1270, 162266), (1580, 130429), (1651, 124820), (2054, 100330), (2540, 81133), (3302, 62410), (4108, 50165), (5135, 40132), (6241, 33020), (6604, 31205), (8255, 24964), (10033, 20540), (10270, 20066), (12482, 16510)]