20638830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{687961}}^1$

素因数の和:687971

約数の個数: 16

約数和(自身を含む): 49533264

約数和(自身を除く): 28894434

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 687961, 1375922, 2063883, 3439805, 4127766, 6879610, 10319415, 20638830]

約数ペア:

[(1, 20638830), (2, 10319415), (3, 6879610), (5, 4127766), (6, 3439805), (10, 2063883), (15, 1375922), (30, 687961)]