285258620

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{20641}}^1$

素因数の和:21341

約数の個数: 24

約数和(自身を含む): 599939088

約数和(自身を除く): 314680468

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 6910, 13820, 20641, 41282, 82564, 103205, 206410, 412820, 14262931, 28525862, 57051724, 71314655, 142629310, 285258620]

約数ペア:

[(1, 285258620), (2, 142629310), (4, 71314655), (5, 57051724), (10, 28525862), (20, 14262931), (691, 412820), (1382, 206410), (2764, 103205), (3455, 82564), (6910, 41282), (13820, 20641)]