19928420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{58613}}^1$

素因数の和:58639

約数の個数: 24

約数和(自身を含む): 44312184

約数和(自身を除く): 24383764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 58613, 117226, 234452, 293065, 586130, 996421, 1172260, 1992842, 3985684, 4982105, 9964210, 19928420]

約数ペア:

[(1, 19928420), (2, 9964210), (4, 4982105), (5, 3985684), (10, 1992842), (17, 1172260), (20, 996421), (34, 586130), (68, 293065), (85, 234452), (170, 117226), (340, 58613)]