31049840

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2011}}^1$

素因数の和:2217

約数の個数: 40

約数和(自身を含む): 72601008

約数和(自身を除く): 41551168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 2011, 3088, 3860, 4022, 7720, 8044, 10055, 15440, 16088, 20110, 32176, 40220, 80440, 160880, 388123, 776246, 1552492, 1940615, 3104984, 3881230, 6209968, 7762460, 15524920, 31049840]

約数ペア:

[(1, 31049840), (2, 15524920), (4, 7762460), (5, 6209968), (8, 3881230), (10, 3104984), (16, 1940615), (20, 1552492), (40, 776246), (80, 388123), (193, 160880), (386, 80440), (772, 40220), (965, 32176), (1544, 20110), (1930, 16088), (2011, 15440), (3088, 10055), (3860, 8044), (4022, 7720)]