20531152

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 41465600

約数和(自身を除く): 20934448

約数列:

[1, 2, 4, 8, 16, 37, 74, 79, 148, 158, 296, 316, 439, 592, 632, 878, 1264, 1756, 2923, 3512, 5846, 7024, 11692, 16243, 23384, 32486, 34681, 46768, 64972, 69362, 129944, 138724, 259888, 277448, 554896, 1283197, 2566394, 5132788, 10265576, 20531152]

約数ペア:

[(1, 20531152), (2, 10265576), (4, 5132788), (8, 2566394), (16, 1283197), (37, 554896), (74, 277448), (79, 259888), (148, 138724), (158, 129944), (296, 69362), (316, 64972), (439, 46768), (592, 34681), (632, 32486), (878, 23384), (1264, 16243), (1756, 11692), (2923, 7024), (3512, 5846)]