20952700

素因数分解:

$2^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1097}}^1$

素因数の和:1302

約数の個数: 36

約数和(自身を含む): 45747072

約数和(自身を除く): 24794372

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 191, 382, 764, 955, 1097, 1910, 2194, 3820, 4388, 4775, 5485, 9550, 10970, 19100, 21940, 27425, 54850, 109700, 209527, 419054, 838108, 1047635, 2095270, 4190540, 5238175, 10476350, 20952700]

約数ペア:

[(1, 20952700), (2, 10476350), (4, 5238175), (5, 4190540), (10, 2095270), (20, 1047635), (25, 838108), (50, 419054), (100, 209527), (191, 109700), (382, 54850), (764, 27425), (955, 21940), (1097, 19100), (1910, 10970), (2194, 9550), (3820, 5485), (4388, 4775)]