80536780

素因数分解:

$2^2\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{2719}}^1$

素因数の和:4209

約数の個数: 24

約数和(自身を含む): 169303680

約数和(自身を除く): 88766900

約数列:

[1, 2, 4, 5, 10, 20, 1481, 2719, 2962, 5438, 5924, 7405, 10876, 13595, 14810, 27190, 29620, 54380, 4026839, 8053678, 16107356, 20134195, 40268390, 80536780]

約数ペア:

[(1, 80536780), (2, 40268390), (4, 20134195), (5, 16107356), (10, 8053678), (20, 4026839), (1481, 54380), (2719, 29620), (2962, 27190), (5438, 14810), (5924, 13595), (7405, 10876)]