19890240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20719}}^1$

素因数の和:20739

約数の個数: 56

約数和(自身を含む): 63154560

約数和(自身を除く): 43264320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 20719, 41438, 62157, 82876, 103595, 124314, 165752, 207190, 248628, 310785, 331504, 414380, 497256, 621570, 663008, 828760, 994512, 1243140, 1326016, 1657520, 1989024, 2486280, 3315040, 3978048, 4972560, 6630080, 9945120, 19890240]

約数ペア:

[(1, 19890240), (2, 9945120), (3, 6630080), (4, 4972560), (5, 3978048), (6, 3315040), (8, 2486280), (10, 1989024), (12, 1657520), (15, 1326016), (16, 1243140), (20, 994512), (24, 828760), (30, 663008), (32, 621570), (40, 497256), (48, 414380), (60, 331504), (64, 310785), (80, 248628), (96, 207190), (120, 165752), (160, 124314), (192, 103595), (240, 82876), (320, 62157), (480, 41438), (960, 20719)]