18821320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67219}}^1$

素因数の和:67237

約数の個数: 32

約数和(自身を含む): 48398400

約数和(自身を除く): 29577080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67219, 134438, 268876, 336095, 470533, 537752, 672190, 941066, 1344380, 1882132, 2352665, 2688760, 3764264, 4705330, 9410660, 18821320]

約数ペア:

[(1, 18821320), (2, 9410660), (4, 4705330), (5, 3764264), (7, 2688760), (8, 2352665), (10, 1882132), (14, 1344380), (20, 941066), (28, 672190), (35, 537752), (40, 470533), (56, 336095), (70, 268876), (140, 134438), (280, 67219)]