20198090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1321}}^1$

素因数の和:1478

約数の個数: 32

約数和(自身を含む): 39977280

約数和(自身を除く): 19779190

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1321, 1390, 1529, 2642, 3058, 6605, 7645, 13210, 14531, 15290, 29062, 72655, 145310, 183619, 367238, 918095, 1836190, 2019809, 4039618, 10099045, 20198090]

約数ペア:

[(1, 20198090), (2, 10099045), (5, 4039618), (10, 2019809), (11, 1836190), (22, 918095), (55, 367238), (110, 183619), (139, 145310), (278, 72655), (695, 29062), (1321, 15290), (1390, 14531), (1529, 13210), (2642, 7645), (3058, 6605)]