388126540

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{75511}}^1$

素因数の和:75777

約数の個数: 24

約数和(自身を含む): 818248032

約数和(自身を除く): 430121492

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 75511, 151022, 302044, 377555, 755110, 1510220, 19406327, 38812654, 77625308, 97031635, 194063270, 388126540]

約数ペア:

[(1, 388126540), (2, 194063270), (4, 97031635), (5, 77625308), (10, 38812654), (20, 19406327), (257, 1510220), (514, 755110), (1028, 377555), (1285, 302044), (2570, 151022), (5140, 75511)]