20665429808

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{94907}}^1$

素因数の和:95385

約数の個数: 40

約数和(自身を含む): 41425443840

約数和(自身を除く): 20760014032

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 439, 496, 878, 1756, 3512, 7024, 13609, 27218, 54436, 94907, 108872, 189814, 217744, 379628, 759256, 1518512, 2942117, 5884234, 11768468, 23536936, 41664173, 47073872, 83328346, 166656692, 333313384, 666626768, 1291589363, 2583178726, 5166357452, 10332714904, 20665429808]

約数ペア:

[(1, 20665429808), (2, 10332714904), (4, 5166357452), (8, 2583178726), (16, 1291589363), (31, 666626768), (62, 333313384), (124, 166656692), (248, 83328346), (439, 47073872), (496, 41664173), (878, 23536936), (1756, 11768468), (3512, 5884234), (7024, 2942117), (13609, 1518512), (27218, 759256), (54436, 379628), (94907, 217744), (108872, 189814)]