20737340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1697}}^1$

素因数の和:1766

約数の個数: 48

約数和(自身を含む): 47924352

約数和(自身を除く): 27187012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 1697, 2444, 3055, 3394, 6110, 6788, 8485, 12220, 16970, 22061, 33940, 44122, 79759, 88244, 110305, 159518, 220610, 319036, 398795, 441220, 797590, 1036867, 1595180, 2073734, 4147468, 5184335, 10368670, 20737340]

約数ペア:

[(1, 20737340), (2, 10368670), (4, 5184335), (5, 4147468), (10, 2073734), (13, 1595180), (20, 1036867), (26, 797590), (47, 441220), (52, 398795), (65, 319036), (94, 220610), (130, 159518), (188, 110305), (235, 88244), (260, 79759), (470, 44122), (611, 33940), (940, 22061), (1222, 16970), (1697, 12220), (2444, 8485), (3055, 6788), (3394, 6110)]