30980005

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4079}}^1$

素因数の和:4129

約数の個数: 24

約数和(自身を含む): 44651520

約数和(自身を除く): 13671515

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 4079, 7595, 20395, 28553, 126449, 142765, 199871, 632245, 885143, 999355, 4425715, 6196001, 30980005]

約数ペア:

[(1, 30980005), (5, 6196001), (7, 4425715), (31, 999355), (35, 885143), (49, 632245), (155, 199871), (217, 142765), (245, 126449), (1085, 28553), (1519, 20395), (4079, 7595)]