20399790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{679993}}^1$

素因数の和:680003

約数の個数: 16

約数和(自身を含む): 48959568

約数和(自身を除く): 28559778

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 679993, 1359986, 2039979, 3399965, 4079958, 6799930, 10199895, 20399790]

約数ペア:

[(1, 20399790), (2, 10199895), (3, 6799930), (5, 4079958), (6, 3399965), (10, 2039979), (15, 1359986), (30, 679993)]