20719000

素因数分解:

$2^3\times 5^3\times {\mathrm{20719}}^1$

素因数の和:20740

約数の個数: 32

約数和(自身を含む): 48484800

約数和(自身を除く): 27765800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20719, 41438, 82876, 103595, 165752, 207190, 414380, 517975, 828760, 1035950, 2071900, 2589875, 4143800, 5179750, 10359500, 20719000]

約数ペア:

[(1, 20719000), (2, 10359500), (4, 5179750), (5, 4143800), (8, 2589875), (10, 2071900), (20, 1035950), (25, 828760), (40, 517975), (50, 414380), (100, 207190), (125, 165752), (200, 103595), (250, 82876), (500, 41438), (1000, 20719)]