20715990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{690533}}^1$

素因数の和:690543

約数の個数: 16

約数和(自身を含む): 49718448

約数和(自身を除く): 29002458

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 690533, 1381066, 2071599, 3452665, 4143198, 6905330, 10357995, 20715990]

約数ペア:

[(1, 20715990), (2, 10357995), (3, 6905330), (5, 4143198), (6, 3452665), (10, 2071599), (15, 1381066), (30, 690533)]