28740010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221077}}^1$

素因数の和:221097

約数の個数: 16

約数和(自身を含む): 55711656

約数和(自身を除く): 26971646

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221077, 442154, 1105385, 2210770, 2874001, 5748002, 14370005, 28740010]

約数ペア:

[(1, 28740010), (2, 14370005), (5, 5748002), (10, 2874001), (13, 2210770), (26, 1105385), (65, 442154), (130, 221077)]