20690366956

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{82591}}^1$

素因数の和:83014

約数の個数: 48

約数和(自身を含む): 43291422720

約数和(自身を除く): 22601055764

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 389, 644, 778, 1556, 2723, 5446, 8947, 10892, 17894, 35788, 62629, 82591, 125258, 165182, 250516, 330364, 578137, 1156274, 1899593, 2312548, 3799186, 7598372, 13297151, 26594302, 32127899, 53188604, 64255798, 128511596, 224895293, 449790586, 738941677, 899581172, 1477883354, 2955766708, 5172591739, 10345183478, 20690366956]

約数ペア:

[(1, 20690366956), (2, 10345183478), (4, 5172591739), (7, 2955766708), (14, 1477883354), (23, 899581172), (28, 738941677), (46, 449790586), (92, 224895293), (161, 128511596), (322, 64255798), (389, 53188604), (644, 32127899), (778, 26594302), (1556, 13297151), (2723, 7598372), (5446, 3799186), (8947, 2312548), (10892, 1899593), (17894, 1156274), (35788, 578137), (62629, 330364), (82591, 250516), (125258, 165182)]