20121294025

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{208673}}^1$

素因数の和:208738

約数の個数: 48

約数和(自身を含む): 31050691200

約数和(自身を除く): 10929397175

約数列:

[1, 5, 7, 19, 25, 29, 35, 95, 133, 145, 175, 203, 475, 551, 665, 725, 1015, 2755, 3325, 3857, 5075, 13775, 19285, 96425, 208673, 1043365, 1460711, 3964787, 5216825, 6051517, 7303555, 19823935, 27753509, 30257585, 36517775, 42360619, 99119675, 114978823, 138767545, 151287925, 211803095, 574894115, 693837725, 804851761, 1059015475, 2874470575, 4024258805, 20121294025]

約数ペア:

[(1, 20121294025), (5, 4024258805), (7, 2874470575), (19, 1059015475), (25, 804851761), (29, 693837725), (35, 574894115), (95, 211803095), (133, 151287925), (145, 138767545), (175, 114978823), (203, 99119675), (475, 42360619), (551, 36517775), (665, 30257585), (725, 27753509), (1015, 19823935), (2755, 7303555), (3325, 6051517), (3857, 5216825), (5075, 3964787), (13775, 1460711), (19285, 1043365), (96425, 208673)]