78307280

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2441}}^1$

素因数の和:2855

約数の個数: 40

約数和(自身を含む): 182593224

約数和(自身を除く): 104285944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 2441, 3208, 4010, 4882, 6416, 8020, 9764, 12205, 16040, 19528, 24410, 32080, 39056, 48820, 97640, 195280, 978841, 1957682, 3915364, 4894205, 7830728, 9788410, 15661456, 19576820, 39153640, 78307280]

約数ペア:

[(1, 78307280), (2, 39153640), (4, 19576820), (5, 15661456), (8, 9788410), (10, 7830728), (16, 4894205), (20, 3915364), (40, 1957682), (80, 978841), (401, 195280), (802, 97640), (1604, 48820), (2005, 39056), (2441, 32080), (3208, 24410), (4010, 19528), (4882, 16040), (6416, 12205), (8020, 9764)]