20149778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 34292160

約数和(自身を除く): 14142382

約数列:

[1, 2, 11, 22, 41, 82, 89, 178, 251, 451, 502, 902, 979, 1958, 2761, 3649, 5522, 7298, 10291, 20582, 22339, 40139, 44678, 80278, 113201, 226402, 245729, 491458, 915899, 1831798, 10074889, 20149778]

約数ペア:

[(1, 20149778), (2, 10074889), (11, 1831798), (22, 915899), (41, 491458), (82, 245729), (89, 226402), (178, 113201), (251, 80278), (451, 44678), (502, 40139), (902, 22339), (979, 20582), (1958, 10291), (2761, 7298), (3649, 5522)]