20105864

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{967}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 39726720

約数和(自身を除く): 19620856

約数列:

[1, 2, 4, 8, 23, 46, 92, 113, 184, 226, 452, 904, 967, 1934, 2599, 3868, 5198, 7736, 10396, 20792, 22241, 44482, 88964, 109271, 177928, 218542, 437084, 874168, 2513233, 5026466, 10052932, 20105864]

約数ペア:

[(1, 20105864), (2, 10052932), (4, 5026466), (8, 2513233), (23, 874168), (46, 437084), (92, 218542), (113, 177928), (184, 109271), (226, 88964), (452, 44482), (904, 22241), (967, 20792), (1934, 10396), (2599, 7736), (3868, 5198)]