217200080

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{17293}}^1$

素因数の和:17463

約数の個数: 40

約数和(自身を含む): 508236072

約数和(自身を除く): 291035992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 12560, 17293, 34586, 69172, 86465, 138344, 172930, 276688, 345860, 691720, 1383440, 2715001, 5430002, 10860004, 13575005, 21720008, 27150010, 43440016, 54300020, 108600040, 217200080]

約数ペア:

[(1, 217200080), (2, 108600040), (4, 54300020), (5, 43440016), (8, 27150010), (10, 21720008), (16, 13575005), (20, 10860004), (40, 5430002), (80, 2715001), (157, 1383440), (314, 691720), (628, 345860), (785, 276688), (1256, 172930), (1570, 138344), (2512, 86465), (3140, 69172), (6280, 34586), (12560, 17293)]