31280810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1429}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 61776000

約数和(自身を除く): 30495190

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 995, 1429, 1990, 2189, 2858, 4378, 7145, 10945, 14290, 15719, 21890, 31438, 78595, 157190, 284371, 568742, 1421855, 2843710, 3128081, 6256162, 15640405, 31280810]

約数ペア:

[(1, 31280810), (2, 15640405), (5, 6256162), (10, 3128081), (11, 2843710), (22, 1421855), (55, 568742), (110, 284371), (199, 157190), (398, 78595), (995, 31438), (1429, 21890), (1990, 15719), (2189, 14290), (2858, 10945), (4378, 7145)]