20758465

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 31401216

約数和(自身を除く): 10642751

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 1061, 1505, 2795, 3913, 5305, 7427, 13793, 19565, 37135, 45623, 68965, 96551, 228115, 319361, 482755, 593099, 1596805, 2965495, 4151693, 20758465]

約数ペア:

[(1, 20758465), (5, 4151693), (7, 2965495), (13, 1596805), (35, 593099), (43, 482755), (65, 319361), (91, 228115), (215, 96551), (301, 68965), (455, 45623), (559, 37135), (1061, 19565), (1505, 13793), (2795, 7427), (3913, 5305)]