1311403725

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{797}}^1$

素因数の和:987

約数の個数: 72

約数和(自身を含む): 2408095872

約数和(自身を除く): 1096692147

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 103, 213, 225, 309, 355, 515, 639, 797, 927, 1065, 1545, 1775, 2391, 2575, 3195, 3985, 4635, 5325, 7173, 7313, 7725, 11955, 15975, 19925, 21939, 23175, 35865, 36565, 56587, 59775, 65817, 82091, 109695, 169761, 179325, 182825, 246273, 282935, 329085, 410455, 509283, 548475, 738819, 848805, 1231365, 1414675, 1645425, 2052275, 2546415, 3694095, 4244025, 5828461, 6156825, 12732075, 17485383, 18470475, 29142305, 52456149, 87426915, 145711525, 262280745, 437134575, 1311403725]

約数ペア:

[(1, 1311403725), (3, 437134575), (5, 262280745), (9, 145711525), (15, 87426915), (25, 52456149), (45, 29142305), (71, 18470475), (75, 17485383), (103, 12732075), (213, 6156825), (225, 5828461), (309, 4244025), (355, 3694095), (515, 2546415), (639, 2052275), (797, 1645425), (927, 1414675), (1065, 1231365), (1545, 848805), (1775, 738819), (2391, 548475), (2575, 509283), (3195, 410455), (3985, 329085), (4635, 282935), (5325, 246273), (7173, 182825), (7313, 179325), (7725, 169761), (11955, 109695), (15975, 82091), (19925, 65817), (21939, 59775), (23175, 56587), (35865, 36565)]