28491980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129509}}^1$

素因数の和:129529

約数の個数: 24

約数和(自身を含む): 65273040

約数和(自身を除く): 36781060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129509, 259018, 518036, 647545, 1295090, 1424599, 2590180, 2849198, 5698396, 7122995, 14245990, 28491980]

約数ペア:

[(1, 28491980), (2, 14245990), (4, 7122995), (5, 5698396), (10, 2849198), (11, 2590180), (20, 1424599), (22, 1295090), (44, 647545), (55, 518036), (110, 259018), (220, 129509)]