221637880

素因数分解:

$2^3\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{5051}}^1$

素因数の和:6159

約数の個数: 32

約数和(自身を含む): 499238640

約数和(自身を除く): 277600760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1097, 2194, 4388, 5051, 5485, 8776, 10102, 10970, 20204, 21940, 25255, 40408, 43880, 50510, 101020, 202040, 5540947, 11081894, 22163788, 27704735, 44327576, 55409470, 110818940, 221637880]

約数ペア:

[(1, 221637880), (2, 110818940), (4, 55409470), (5, 44327576), (8, 27704735), (10, 22163788), (20, 11081894), (40, 5540947), (1097, 202040), (2194, 101020), (4388, 50510), (5051, 43880), (5485, 40408), (8776, 25255), (10102, 21940), (10970, 20204)]