81089984

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{20771}}^1$

素因数の和:20844

約数の個数: 28

約数和(自身を含む): 163558728

約数和(自身を除く): 82468744

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 244, 488, 976, 1952, 3904, 20771, 41542, 83084, 166168, 332336, 664672, 1267031, 1329344, 2534062, 5068124, 10136248, 20272496, 40544992, 81089984]

約数ペア:

[(1, 81089984), (2, 40544992), (4, 20272496), (8, 10136248), (16, 5068124), (32, 2534062), (61, 1329344), (64, 1267031), (122, 664672), (244, 332336), (488, 166168), (976, 83084), (1952, 41542), (3904, 20771)]