72800900

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{4637}}^1$

素因数の和:4808

約数の個数: 36

約数和(自身を含む): 159018468

約数和(自身を除く): 86217568

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 628, 785, 1570, 3140, 3925, 4637, 7850, 9274, 15700, 18548, 23185, 46370, 92740, 115925, 231850, 463700, 728009, 1456018, 2912036, 3640045, 7280090, 14560180, 18200225, 36400450, 72800900]

約数ペア:

[(1, 72800900), (2, 36400450), (4, 18200225), (5, 14560180), (10, 7280090), (20, 3640045), (25, 2912036), (50, 1456018), (100, 728009), (157, 463700), (314, 231850), (628, 115925), (785, 92740), (1570, 46370), (3140, 23185), (3925, 18548), (4637, 15700), (7850, 9274)]