12417520

素因数分解:

$2^4\times 5^1\times {\mathrm{155219}}^1$

素因数の和:155232

約数の個数: 20

約数和(自身を含む): 28870920

約数和(自身を除く): 16453400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 155219, 310438, 620876, 776095, 1241752, 1552190, 2483504, 3104380, 6208760, 12417520]

約数ペア:

[(1, 12417520), (2, 6208760), (4, 3104380), (5, 2483504), (8, 1552190), (10, 1241752), (16, 776095), (20, 620876), (40, 310438), (80, 155219)]