199972156

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{18731}}^1$

素因数の和:18909

約数の個数: 24

約数和(自身を含む): 372916656

約数和(自身を除く): 172944500

約数列:

[1, 2, 4, 17, 34, 68, 157, 314, 628, 2669, 5338, 10676, 18731, 37462, 74924, 318427, 636854, 1273708, 2940767, 5881534, 11763068, 49993039, 99986078, 199972156]

約数ペア:

[(1, 199972156), (2, 99986078), (4, 49993039), (17, 11763068), (34, 5881534), (68, 2940767), (157, 1273708), (314, 636854), (628, 318427), (2669, 74924), (5338, 37462), (10676, 18731)]