20123793365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1\times {\mathrm{10979}}^1$

素因数の和:11333

約数の個数: 32

約数和(自身を含む): 26319323520

約数和(自身を除く): 6195530155

約数列:

[1, 5, 13, 65, 163, 173, 815, 865, 2119, 2249, 10595, 10979, 11245, 28199, 54895, 140995, 142727, 366587, 713635, 1789577, 1832935, 1899367, 8947885, 9496835, 23264501, 24691771, 116322505, 123458855, 309596821, 1547984105, 4024758673, 20123793365]

約数ペア:

[(1, 20123793365), (5, 4024758673), (13, 1547984105), (65, 309596821), (163, 123458855), (173, 116322505), (815, 24691771), (865, 23264501), (2119, 9496835), (2249, 8947885), (10595, 1899367), (10979, 1832935), (11245, 1789577), (28199, 713635), (54895, 366587), (140995, 142727)]