81975712

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28151}}^1$

素因数の和:28181

約数の個数: 48

約数和(自身を含む): 198640512

約数和(自身を除く): 116664800

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 28151, 56302, 112604, 197057, 225208, 365963, 394114, 450416, 731926, 788228, 900832, 1463852, 1576456, 2561741, 2927704, 3152912, 5123482, 5855408, 6305824, 10246964, 11710816, 20493928, 40987856, 81975712]

約数ペア:

[(1, 81975712), (2, 40987856), (4, 20493928), (7, 11710816), (8, 10246964), (13, 6305824), (14, 5855408), (16, 5123482), (26, 3152912), (28, 2927704), (32, 2561741), (52, 1576456), (56, 1463852), (91, 900832), (104, 788228), (112, 731926), (182, 450416), (208, 394114), (224, 365963), (364, 225208), (416, 197057), (728, 112604), (1456, 56302), (2912, 28151)]