89920180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{4091}}^1$

素因数の和:4264

約数の個数: 48

約数和(自身を含む): 217236096

約数和(自身を除く): 127315916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4091, 4396, 5495, 8182, 10990, 16364, 20455, 21980, 28637, 40910, 57274, 81820, 114548, 143185, 286370, 572740, 642287, 1284574, 2569148, 3211435, 4496009, 6422870, 8992018, 12845740, 17984036, 22480045, 44960090, 89920180]

約数ペア:

[(1, 89920180), (2, 44960090), (4, 22480045), (5, 17984036), (7, 12845740), (10, 8992018), (14, 6422870), (20, 4496009), (28, 3211435), (35, 2569148), (70, 1284574), (140, 642287), (157, 572740), (314, 286370), (628, 143185), (785, 114548), (1099, 81820), (1570, 57274), (2198, 40910), (3140, 28637), (4091, 21980), (4396, 20455), (5495, 16364), (8182, 10990)]