20595320

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1223}}^1$

素因数の和:1655

約数の個数: 32

約数和(自身を含む): 46487520

約数和(自身を除く): 25892200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1223, 1684, 2105, 2446, 3368, 4210, 4892, 6115, 8420, 9784, 12230, 16840, 24460, 48920, 514883, 1029766, 2059532, 2574415, 4119064, 5148830, 10297660, 20595320]

約数ペア:

[(1, 20595320), (2, 10297660), (4, 5148830), (5, 4119064), (8, 2574415), (10, 2059532), (20, 1029766), (40, 514883), (421, 48920), (842, 24460), (1223, 16840), (1684, 12230), (2105, 9784), (2446, 8420), (3368, 6115), (4210, 4892)]