18723560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16141}}^1$

素因数の和:16181

約数の個数: 32

約数和(自身を含む): 43583400

約数和(自身を除く): 24859840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 16141, 32282, 64564, 80705, 129128, 161410, 322820, 468089, 645640, 936178, 1872356, 2340445, 3744712, 4680890, 9361780, 18723560]

約数ペア:

[(1, 18723560), (2, 9361780), (4, 4680890), (5, 3744712), (8, 2340445), (10, 1872356), (20, 936178), (29, 645640), (40, 468089), (58, 322820), (116, 161410), (145, 129128), (232, 80705), (290, 64564), (580, 32282), (1160, 16141)]