20873728

素因数分解:

$2^9\times {\mathrm{59}}^1\times {\mathrm{691}}^1$

素因数の和:768

約数の個数: 40

約数和(自身を含む): 42474960

約数和(自身を除く): 21601232

約数列:

[1, 2, 4, 8, 16, 32, 59, 64, 118, 128, 236, 256, 472, 512, 691, 944, 1382, 1888, 2764, 3776, 5528, 7552, 11056, 15104, 22112, 30208, 40769, 44224, 81538, 88448, 163076, 176896, 326152, 353792, 652304, 1304608, 2609216, 5218432, 10436864, 20873728]

約数ペア:

[(1, 20873728), (2, 10436864), (4, 5218432), (8, 2609216), (16, 1304608), (32, 652304), (59, 353792), (64, 326152), (118, 176896), (128, 163076), (236, 88448), (256, 81538), (472, 44224), (512, 40769), (691, 30208), (944, 22112), (1382, 15104), (1888, 11056), (2764, 7552), (3776, 5528)]