11215480

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1091}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 25356240

約数和(自身を除く): 14140760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1091, 1285, 2056, 2182, 2570, 4364, 5140, 5455, 8728, 10280, 10910, 21820, 43640, 280387, 560774, 1121548, 1401935, 2243096, 2803870, 5607740, 11215480]

約数ペア:

[(1, 11215480), (2, 5607740), (4, 2803870), (5, 2243096), (8, 1401935), (10, 1121548), (20, 560774), (40, 280387), (257, 43640), (514, 21820), (1028, 10910), (1091, 10280), (1285, 8728), (2056, 5455), (2182, 5140), (2570, 4364)]