81589456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1759}}^1$

素因数の和:2003

約数の個数: 40

約数和(自身を含む): 171100160

約数和(自身を除く): 89510704

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 446, 892, 1759, 1784, 2899, 3518, 3568, 5798, 7036, 11596, 14072, 22867, 23192, 28144, 45734, 46384, 91468, 182936, 365872, 392257, 784514, 1569028, 3138056, 5099341, 6276112, 10198682, 20397364, 40794728, 81589456]

約数ペア:

[(1, 81589456), (2, 40794728), (4, 20397364), (8, 10198682), (13, 6276112), (16, 5099341), (26, 3138056), (52, 1569028), (104, 784514), (208, 392257), (223, 365872), (446, 182936), (892, 91468), (1759, 46384), (1784, 45734), (2899, 28144), (3518, 23192), (3568, 22867), (5798, 14072), (7036, 11596)]