20162748905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1\times {\mathrm{8863}}^1$

素因数の和:10041

約数の個数: 32

約数和(自身を含む): 26923868160

約数和(自身を除く): 6761119255

約数列:

[1, 5, 13, 31, 65, 155, 403, 1129, 2015, 5645, 8863, 14677, 34999, 44315, 73385, 115219, 174995, 274753, 454987, 576095, 1373765, 2274935, 3571789, 10006327, 17858945, 50031635, 130082251, 310196137, 650411255, 1550980685, 4032549781, 20162748905]

約数ペア:

[(1, 20162748905), (5, 4032549781), (13, 1550980685), (31, 650411255), (65, 310196137), (155, 130082251), (403, 50031635), (1129, 17858945), (2015, 10006327), (5645, 3571789), (8863, 2274935), (14677, 1373765), (34999, 576095), (44315, 454987), (73385, 274753), (115219, 174995)]