39818640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{661}}^1$

素因数の和:928

約数の個数: 80

約数和(自身を含む): 124117056

約数和(自身を除く): 84298416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 251, 502, 661, 753, 1004, 1255, 1322, 1506, 1983, 2008, 2510, 2644, 3012, 3305, 3765, 3966, 4016, 5020, 5288, 6024, 6610, 7530, 7932, 9915, 10040, 10576, 12048, 13220, 15060, 15864, 19830, 20080, 26440, 30120, 31728, 39660, 52880, 60240, 79320, 158640, 165911, 331822, 497733, 663644, 829555, 995466, 1327288, 1659110, 1990932, 2488665, 2654576, 3318220, 3981864, 4977330, 6636440, 7963728, 9954660, 13272880, 19909320, 39818640]

約数ペア:

[(1, 39818640), (2, 19909320), (3, 13272880), (4, 9954660), (5, 7963728), (6, 6636440), (8, 4977330), (10, 3981864), (12, 3318220), (15, 2654576), (16, 2488665), (20, 1990932), (24, 1659110), (30, 1327288), (40, 995466), (48, 829555), (60, 663644), (80, 497733), (120, 331822), (240, 165911), (251, 158640), (502, 79320), (661, 60240), (753, 52880), (1004, 39660), (1255, 31728), (1322, 30120), (1506, 26440), (1983, 20080), (2008, 19830), (2510, 15864), (2644, 15060), (3012, 13220), (3305, 12048), (3765, 10576), (3966, 10040), (4016, 9915), (5020, 7932), (5288, 7530), (6024, 6610)]