20145298985

素因数分解:

$5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{947}}^1\times {\mathrm{2311}}^1$

素因数の和:3533

約数の個数: 32

約数和(自身を含む): 27774185472

約数和(自身を除く): 7628886487

約数列:

[1, 5, 7, 35, 263, 947, 1315, 1841, 2311, 4735, 6629, 9205, 11555, 16177, 33145, 80885, 249061, 607793, 1245305, 1743427, 2188517, 3038965, 4254551, 8717135, 10942585, 15319619, 21272755, 76598095, 575579971, 2877899855, 4029059797, 20145298985]

約数ペア:

[(1, 20145298985), (5, 4029059797), (7, 2877899855), (35, 575579971), (263, 76598095), (947, 21272755), (1315, 15319619), (1841, 10942585), (2311, 8717135), (4735, 4254551), (6629, 3038965), (9205, 2188517), (11555, 1743427), (16177, 1245305), (33145, 607793), (80885, 249061)]