51305440

素因数分解:

$2^5\times 5^1\times {\mathrm{320659}}^1$

素因数の和:320674

約数の個数: 24

約数和(自身を含む): 121209480

約数和(自身を除く): 69904040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 320659, 641318, 1282636, 1603295, 2565272, 3206590, 5130544, 6413180, 10261088, 12826360, 25652720, 51305440]

約数ペア:

[(1, 51305440), (2, 25652720), (4, 12826360), (5, 10261088), (8, 6413180), (10, 5130544), (16, 3206590), (20, 2565272), (32, 1603295), (40, 1282636), (80, 641318), (160, 320659)]