80935040

素因数分解:

$2^7\times 5^1\times {\mathrm{126461}}^1$

素因数の和:126480

約数の個数: 32

約数和(自身を含む): 193486860

約数和(自身を除く): 112551820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 126461, 252922, 505844, 632305, 1011688, 1264610, 2023376, 2529220, 4046752, 5058440, 8093504, 10116880, 16187008, 20233760, 40467520, 80935040]

約数ペア:

[(1, 80935040), (2, 40467520), (4, 20233760), (5, 16187008), (8, 10116880), (10, 8093504), (16, 5058440), (20, 4046752), (32, 2529220), (40, 2023376), (64, 1264610), (80, 1011688), (128, 632305), (160, 505844), (320, 252922), (640, 126461)]