20103265

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 33094656

約数和(自身を除く): 12991391

約数列:

[1, 5, 7, 13, 17, 23, 35, 65, 85, 91, 113, 115, 119, 161, 221, 299, 391, 455, 565, 595, 791, 805, 1105, 1469, 1495, 1547, 1921, 1955, 2093, 2599, 2737, 3955, 5083, 7345, 7735, 9605, 10283, 10465, 12995, 13447, 13685, 18193, 24973, 25415, 33787, 35581, 44183, 51415, 67235, 90965, 124865, 168935, 174811, 177905, 220915, 236509, 309281, 574379, 874055, 1182545, 1546405, 2871895, 4020653, 20103265]

約数ペア:

[(1, 20103265), (5, 4020653), (7, 2871895), (13, 1546405), (17, 1182545), (23, 874055), (35, 574379), (65, 309281), (85, 236509), (91, 220915), (113, 177905), (115, 174811), (119, 168935), (161, 124865), (221, 90965), (299, 67235), (391, 51415), (455, 44183), (565, 35581), (595, 33787), (791, 25415), (805, 24973), (1105, 18193), (1469, 13685), (1495, 13447), (1547, 12995), (1921, 10465), (1955, 10283), (2093, 9605), (2599, 7735), (2737, 7345), (3955, 5083)]