1408520020

素因数分解:

$2^2\times 5^1\times {\mathrm{5573}}^1\times {\mathrm{12637}}^1$

素因数の和:18219

約数の個数: 24

約数和(自身を含む): 2958656904

約数和(自身を除く): 1550136884

約数列:

[1, 2, 4, 5, 10, 20, 5573, 11146, 12637, 22292, 25274, 27865, 50548, 55730, 63185, 111460, 126370, 252740, 70426001, 140852002, 281704004, 352130005, 704260010, 1408520020]

約数ペア:

[(1, 1408520020), (2, 704260010), (4, 352130005), (5, 281704004), (10, 140852002), (20, 70426001), (5573, 252740), (11146, 126370), (12637, 111460), (22292, 63185), (25274, 55730), (27865, 50548)]