20255460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{769}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 56918400

約数和(自身を除く): 36662940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 439, 769, 878, 1317, 1538, 1756, 2195, 2307, 2634, 3076, 3845, 4390, 4614, 5268, 6585, 7690, 8780, 9228, 11535, 13170, 15380, 23070, 26340, 46140, 337591, 675182, 1012773, 1350364, 1687955, 2025546, 3375910, 4051092, 5063865, 6751820, 10127730, 20255460]

約数ペア:

[(1, 20255460), (2, 10127730), (3, 6751820), (4, 5063865), (5, 4051092), (6, 3375910), (10, 2025546), (12, 1687955), (15, 1350364), (20, 1012773), (30, 675182), (60, 337591), (439, 46140), (769, 26340), (878, 23070), (1317, 15380), (1538, 13170), (1756, 11535), (2195, 9228), (2307, 8780), (2634, 7690), (3076, 6585), (3845, 5268), (4390, 4614)]