20394130

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 37944000

約数和(自身を除く): 17549870

約数列:

[1, 2, 5, 10, 61, 67, 122, 134, 305, 335, 499, 610, 670, 998, 2495, 4087, 4990, 8174, 20435, 30439, 33433, 40870, 60878, 66866, 152195, 167165, 304390, 334330, 2039413, 4078826, 10197065, 20394130]

約数ペア:

[(1, 20394130), (2, 10197065), (5, 4078826), (10, 2039413), (61, 334330), (67, 304390), (122, 167165), (134, 152195), (305, 66866), (335, 60878), (499, 40870), (610, 33433), (670, 30439), (998, 20435), (2495, 8174), (4087, 4990)]