31919980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21863}}^1$

素因数の和:21945

約数の個数: 24

約数和(自身を含む): 67953312

約数和(自身を除く): 36033332

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 21863, 43726, 87452, 109315, 218630, 437260, 1595999, 3191998, 6383996, 7979995, 15959990, 31919980]

約数ペア:

[(1, 31919980), (2, 15959990), (4, 7979995), (5, 6383996), (10, 3191998), (20, 1595999), (73, 437260), (146, 218630), (292, 109315), (365, 87452), (730, 43726), (1460, 21863)]