20228680

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1097}}^1$

素因数の和:1569

約数の個数: 32

約数和(自身を含む): 45654840

約数和(自身を除く): 25426160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1097, 1844, 2194, 2305, 3688, 4388, 4610, 5485, 8776, 9220, 10970, 18440, 21940, 43880, 505717, 1011434, 2022868, 2528585, 4045736, 5057170, 10114340, 20228680]

約数ペア:

[(1, 20228680), (2, 10114340), (4, 5057170), (5, 4045736), (8, 2528585), (10, 2022868), (20, 1011434), (40, 505717), (461, 43880), (922, 21940), (1097, 18440), (1844, 10970), (2194, 9220), (2305, 8776), (3688, 5485), (4388, 4610)]