81528040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{185291}}^1$

素因数の和:185313

約数の個数: 32

約数和(自身を含む): 200115360

約数和(自身を除く): 118587320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 185291, 370582, 741164, 926455, 1482328, 1852910, 2038201, 3705820, 4076402, 7411640, 8152804, 10191005, 16305608, 20382010, 40764020, 81528040]

約数ペア:

[(1, 81528040), (2, 40764020), (4, 20382010), (5, 16305608), (8, 10191005), (10, 8152804), (11, 7411640), (20, 4076402), (22, 3705820), (40, 2038201), (44, 1852910), (55, 1482328), (88, 926455), (110, 741164), (220, 370582), (440, 185291)]