20120756045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{659}}^1\times {\mathrm{27631}}^1$

素因数の和:28325

約数の個数: 32

約数和(自身を含む): 27574525440

約数和(自身を除く): 7453769395

約数列:

[1, 5, 13, 17, 65, 85, 221, 659, 1105, 3295, 8567, 11203, 27631, 42835, 56015, 138155, 145639, 359203, 469727, 728195, 1796015, 2348635, 6106451, 18208829, 30532255, 91044145, 236714777, 309550093, 1183573885, 1547750465, 4024151209, 20120756045]

約数ペア:

[(1, 20120756045), (5, 4024151209), (13, 1547750465), (17, 1183573885), (65, 309550093), (85, 236714777), (221, 91044145), (659, 30532255), (1105, 18208829), (3295, 6106451), (8567, 2348635), (11203, 1796015), (27631, 728195), (42835, 469727), (56015, 359203), (138155, 145639)]