210909090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{6397}}^1$

素因数の和:6571

約数の個数: 64

約数和(自身を含む): 582269184

約数和(自身を除く): 371360094

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 157, 210, 314, 471, 785, 942, 1099, 1570, 2198, 2355, 3297, 4710, 5495, 6397, 6594, 10990, 12794, 16485, 19191, 31985, 32970, 38382, 44779, 63970, 89558, 95955, 134337, 191910, 223895, 268674, 447790, 671685, 1004329, 1343370, 2008658, 3012987, 5021645, 6025974, 7030303, 10043290, 14060606, 15064935, 21090909, 30129870, 35151515, 42181818, 70303030, 105454545, 210909090]

約数ペア:

[(1, 210909090), (2, 105454545), (3, 70303030), (5, 42181818), (6, 35151515), (7, 30129870), (10, 21090909), (14, 15064935), (15, 14060606), (21, 10043290), (30, 7030303), (35, 6025974), (42, 5021645), (70, 3012987), (105, 2008658), (157, 1343370), (210, 1004329), (314, 671685), (471, 447790), (785, 268674), (942, 223895), (1099, 191910), (1570, 134337), (2198, 95955), (2355, 89558), (3297, 63970), (4710, 44779), (5495, 38382), (6397, 32970), (6594, 31985), (10990, 19191), (12794, 16485)]