2781686545

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2719}}^1$

素因数の和:2854

約数の個数: 48

約数和(自身を含む): 3907008000

約数和(自身を除く): 1125321455

約数列:

[1, 5, 11, 19, 55, 89, 95, 121, 209, 445, 605, 979, 1045, 1691, 2299, 2719, 4895, 8455, 10769, 11495, 13595, 18601, 29909, 51661, 53845, 93005, 149545, 204611, 241991, 258305, 328999, 568271, 1023055, 1209955, 1644995, 2661901, 2841355, 4597829, 6250981, 13309505, 22989145, 29280911, 31254905, 50576119, 146404555, 252880595, 556337309, 2781686545]

約数ペア:

[(1, 2781686545), (5, 556337309), (11, 252880595), (19, 146404555), (55, 50576119), (89, 31254905), (95, 29280911), (121, 22989145), (209, 13309505), (445, 6250981), (605, 4597829), (979, 2841355), (1045, 2661901), (1691, 1644995), (2299, 1209955), (2719, 1023055), (4895, 568271), (8455, 328999), (10769, 258305), (11495, 241991), (13595, 204611), (18601, 149545), (29909, 93005), (51661, 53845)]