19728010

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32341}}^1$

素因数の和:32409

約数の個数: 16

約数和(自身を含む): 36093672

約数和(自身を除く): 16365662

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 32341, 64682, 161705, 323410, 1972801, 3945602, 9864005, 19728010]

約数ペア:

[(1, 19728010), (2, 9864005), (5, 3945602), (10, 1972801), (61, 323410), (122, 161705), (305, 64682), (610, 32341)]