19619940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{326999}}^1$

素因数の和:327011

約数の個数: 24

約数和(自身を含む): 54936000

約数和(自身を除く): 35316060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 326999, 653998, 980997, 1307996, 1634995, 1961994, 3269990, 3923988, 4904985, 6539980, 9809970, 19619940]

約数ペア:

[(1, 19619940), (2, 9809970), (3, 6539980), (4, 4904985), (5, 3923988), (6, 3269990), (10, 1961994), (12, 1634995), (15, 1307996), (20, 980997), (30, 653998), (60, 326999)]