1721005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 32

約数和(自身を含む): 2540160

約数和(自身を除く): 819155

約数列:

[1, 5, 11, 13, 29, 55, 65, 83, 143, 145, 319, 377, 415, 715, 913, 1079, 1595, 1885, 2407, 4147, 4565, 5395, 11869, 12035, 20735, 26477, 31291, 59345, 132385, 156455, 344201, 1721005]

約数ペア:

[(1, 1721005), (5, 344201), (11, 156455), (13, 132385), (29, 59345), (55, 31291), (65, 26477), (83, 20735), (143, 12035), (145, 11869), (319, 5395), (377, 4565), (415, 4147), (715, 2407), (913, 1885), (1079, 1595)]