20803589125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{2341}}^1$

素因数の和:2671

約数の個数: 64

約数和(自身を含む): 29672428032

約数和(自身を除く): 8868838907

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 281, 575, 1265, 1375, 1405, 2341, 2875, 3091, 6325, 6463, 7025, 11705, 15455, 25751, 31625, 32315, 35125, 53843, 58525, 71093, 77275, 128755, 161575, 269215, 292625, 355465, 386375, 592273, 643775, 657821, 807875, 1346075, 1777325, 2961365, 3218875, 3289105, 6730375, 7236031, 8886625, 14806825, 15129883, 16445525, 36180155, 74034125, 75649415, 82227625, 166428713, 180900775, 378247075, 832143565, 904503875, 1891235375, 4160717825, 20803589125]

約数ペア:

[(1, 20803589125), (5, 4160717825), (11, 1891235375), (23, 904503875), (25, 832143565), (55, 378247075), (115, 180900775), (125, 166428713), (253, 82227625), (275, 75649415), (281, 74034125), (575, 36180155), (1265, 16445525), (1375, 15129883), (1405, 14806825), (2341, 8886625), (2875, 7236031), (3091, 6730375), (6325, 3289105), (6463, 3218875), (7025, 2961365), (11705, 1777325), (15455, 1346075), (25751, 807875), (31625, 657821), (32315, 643775), (35125, 592273), (53843, 386375), (58525, 355465), (71093, 292625), (77275, 269215), (128755, 161575)]