18757340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133981}}^1$

素因数の和:133997

約数の個数: 24

約数和(自身を含む): 45017952

約数和(自身を除く): 26260612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133981, 267962, 535924, 669905, 937867, 1339810, 1875734, 2679620, 3751468, 4689335, 9378670, 18757340]

約数ペア:

[(1, 18757340), (2, 9378670), (4, 4689335), (5, 3751468), (7, 2679620), (10, 1875734), (14, 1339810), (20, 937867), (28, 669905), (35, 535924), (70, 267962), (140, 133981)]