281185736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{20639}}^1$

素因数の和:20789

約数の個数: 32

約数和(自身を含む): 572140800

約数和(自身を除く): 290955064

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 262, 524, 1048, 1703, 3406, 6812, 13624, 20639, 41278, 82556, 165112, 268307, 536614, 1073228, 2146456, 2703709, 5407418, 10814836, 21629672, 35148217, 70296434, 140592868, 281185736]

約数ペア:

[(1, 281185736), (2, 140592868), (4, 70296434), (8, 35148217), (13, 21629672), (26, 10814836), (52, 5407418), (104, 2703709), (131, 2146456), (262, 1073228), (524, 536614), (1048, 268307), (1703, 165112), (3406, 82556), (6812, 41278), (13624, 20639)]