128776820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{222029}}^1$

素因数の和:222067

約数の個数: 24

約数和(自身を含む): 279757800

約数和(自身を除く): 150980980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 222029, 444058, 888116, 1110145, 2220290, 4440580, 6438841, 12877682, 25755364, 32194205, 64388410, 128776820]

約数ペア:

[(1, 128776820), (2, 64388410), (4, 32194205), (5, 25755364), (10, 12877682), (20, 6438841), (29, 4440580), (58, 2220290), (116, 1110145), (145, 888116), (290, 444058), (580, 222029)]