20205320

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1091}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 45601920

約数和(自身を除く): 25396600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1091, 1852, 2182, 2315, 3704, 4364, 4630, 5455, 8728, 9260, 10910, 18520, 21820, 43640, 505133, 1010266, 2020532, 2525665, 4041064, 5051330, 10102660, 20205320]

約数ペア:

[(1, 20205320), (2, 10102660), (4, 5051330), (5, 4041064), (8, 2525665), (10, 2020532), (20, 1010266), (40, 505133), (463, 43640), (926, 21820), (1091, 18520), (1852, 10910), (2182, 9260), (2315, 8728), (3704, 5455), (4364, 4630)]