19941760

素因数分解:

$2^7\times 5^1\times {\mathrm{31159}}^1$

素因数の和:31178

約数の個数: 32

約数和(自身を含む): 47674800

約数和(自身を除く): 27733040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31159, 62318, 124636, 155795, 249272, 311590, 498544, 623180, 997088, 1246360, 1994176, 2492720, 3988352, 4985440, 9970880, 19941760]

約数ペア:

[(1, 19941760), (2, 9970880), (4, 4985440), (5, 3988352), (8, 2492720), (10, 1994176), (16, 1246360), (20, 997088), (32, 623180), (40, 498544), (64, 311590), (80, 249272), (128, 155795), (160, 124636), (320, 62318), (640, 31159)]