20604935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 29211840

約数和(自身を除く): 8606905

約数列:

[1, 5, 13, 17, 29, 65, 85, 145, 221, 377, 493, 643, 1105, 1885, 2465, 3215, 6409, 8359, 10931, 18647, 32045, 41795, 54655, 93235, 142103, 242411, 316999, 710515, 1212055, 1584995, 4120987, 20604935]

約数ペア:

[(1, 20604935), (5, 4120987), (13, 1584995), (17, 1212055), (29, 710515), (65, 316999), (85, 242411), (145, 142103), (221, 93235), (377, 54655), (493, 41795), (643, 32045), (1105, 18647), (1885, 10931), (2465, 8359), (3215, 6409)]