20216282975

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{82339}}^1$

素因数の和:82440

約数の個数: 48

約数和(自身を含む): 30385436160

約数和(自身を除く): 10169153185

約数列:

[1, 5, 7, 23, 25, 35, 61, 115, 161, 175, 305, 427, 575, 805, 1403, 1525, 2135, 4025, 7015, 9821, 10675, 35075, 49105, 82339, 245525, 411695, 576373, 1893797, 2058475, 2881865, 5022679, 9468985, 13256579, 14409325, 25113395, 35158753, 47344925, 66282895, 115521617, 125566975, 175793765, 331414475, 577608085, 808651319, 878968825, 2888040425, 4043256595, 20216282975]

約数ペア:

[(1, 20216282975), (5, 4043256595), (7, 2888040425), (23, 878968825), (25, 808651319), (35, 577608085), (61, 331414475), (115, 175793765), (161, 125566975), (175, 115521617), (305, 66282895), (427, 47344925), (575, 35158753), (805, 25113395), (1403, 14409325), (1525, 13256579), (2135, 9468985), (4025, 5022679), (7015, 2881865), (9821, 2058475), (10675, 1893797), (35075, 576373), (49105, 411695), (82339, 245525)]