31236040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{70991}}^1$

素因数の和:71013

約数の個数: 32

約数和(自身を含む): 76671360

約数和(自身を除く): 45435320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 70991, 141982, 283964, 354955, 567928, 709910, 780901, 1419820, 1561802, 2839640, 3123604, 3904505, 6247208, 7809010, 15618020, 31236040]

約数ペア:

[(1, 31236040), (2, 15618020), (4, 7809010), (5, 6247208), (8, 3904505), (10, 3123604), (11, 2839640), (20, 1561802), (22, 1419820), (40, 780901), (44, 709910), (55, 567928), (88, 354955), (110, 283964), (220, 141982), (440, 70991)]