19315940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{491}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 46617984

約数和(自身を除く): 27302044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 491, 562, 982, 1124, 1405, 1964, 1967, 2455, 2810, 3437, 3934, 4910, 5620, 6874, 7868, 9820, 9835, 13748, 17185, 19670, 34370, 39340, 68740, 137971, 275942, 551884, 689855, 965797, 1379710, 1931594, 2759420, 3863188, 4828985, 9657970, 19315940]

約数ペア:

[(1, 19315940), (2, 9657970), (4, 4828985), (5, 3863188), (7, 2759420), (10, 1931594), (14, 1379710), (20, 965797), (28, 689855), (35, 551884), (70, 275942), (140, 137971), (281, 68740), (491, 39340), (562, 34370), (982, 19670), (1124, 17185), (1405, 13748), (1964, 9835), (1967, 9820), (2455, 7868), (2810, 6874), (3437, 5620), (3934, 4910)]