18339040

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1879}}^1$

素因数の和:1955

約数の個数: 48

約数和(自身を含む): 44059680

約数和(自身を除く): 25720640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1879, 1952, 2440, 3758, 4880, 7516, 9395, 9760, 15032, 18790, 30064, 37580, 60128, 75160, 114619, 150320, 229238, 300640, 458476, 573095, 916952, 1146190, 1833904, 2292380, 3667808, 4584760, 9169520, 18339040]

約数ペア:

[(1, 18339040), (2, 9169520), (4, 4584760), (5, 3667808), (8, 2292380), (10, 1833904), (16, 1146190), (20, 916952), (32, 573095), (40, 458476), (61, 300640), (80, 229238), (122, 150320), (160, 114619), (244, 75160), (305, 60128), (488, 37580), (610, 30064), (976, 18790), (1220, 15032), (1879, 9760), (1952, 9395), (2440, 7516), (3758, 4880)]