19903030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{859}}^1$

素因数の和:1204

約数の個数: 32

約数和(自身を含む): 41114880

約数和(自身を除く): 21211850

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 331, 662, 859, 1655, 1718, 2317, 3310, 4295, 4634, 6013, 8590, 11585, 12026, 23170, 30065, 60130, 284329, 568658, 1421645, 1990303, 2843290, 3980606, 9951515, 19903030]

約数ペア:

[(1, 19903030), (2, 9951515), (5, 3980606), (7, 2843290), (10, 1990303), (14, 1421645), (35, 568658), (70, 284329), (331, 60130), (662, 30065), (859, 23170), (1655, 12026), (1718, 11585), (2317, 8590), (3310, 6013), (4295, 4634)]