20067385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 27998208

約数和(自身を除く): 7930823

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 299, 403, 433, 713, 1495, 2015, 2165, 3565, 5629, 9269, 9959, 13423, 28145, 46345, 49795, 67115, 129467, 174499, 308729, 647335, 872495, 1543645, 4013477, 20067385]

約数ペア:

[(1, 20067385), (5, 4013477), (13, 1543645), (23, 872495), (31, 647335), (65, 308729), (115, 174499), (155, 129467), (299, 67115), (403, 49795), (433, 46345), (713, 28145), (1495, 13423), (2015, 9959), (2165, 9269), (3565, 5629)]