19845740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16267}}^1$

素因数の和:16337

約数の個数: 24

約数和(自身を含む): 42361872

約数和(自身を除く): 22516132

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16267, 32534, 65068, 81335, 162670, 325340, 992287, 1984574, 3969148, 4961435, 9922870, 19845740]

約数ペア:

[(1, 19845740), (2, 9922870), (4, 4961435), (5, 3969148), (10, 1984574), (20, 992287), (61, 325340), (122, 162670), (244, 81335), (305, 65068), (610, 32534), (1220, 16267)]