19720530

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{73039}}^1$

素因数の和:73055

約数の個数: 32

約数和(自身を含む): 52588800

約数和(自身を除く): 32868270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 73039, 146078, 219117, 365195, 438234, 657351, 730390, 1095585, 1314702, 1972053, 2191170, 3286755, 3944106, 6573510, 9860265, 19720530]

約数ペア:

[(1, 19720530), (2, 9860265), (3, 6573510), (5, 3944106), (6, 3286755), (9, 2191170), (10, 1972053), (15, 1314702), (18, 1095585), (27, 730390), (30, 657351), (45, 438234), (54, 365195), (90, 219117), (135, 146078), (270, 73039)]