20401105

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{617}}^1$

素因数の和:1028

約数の個数: 16

約数和(自身を含む): 26030160

約数和(自身を除く): 5629055

約数列:

[1, 5, 17, 85, 389, 617, 1945, 3085, 6613, 10489, 33065, 52445, 240013, 1200065, 4080221, 20401105]

約数ペア:

[(1, 20401105), (5, 4080221), (17, 1200065), (85, 240013), (389, 52445), (617, 33065), (1945, 10489), (3085, 6613)]