81309140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16069}}^1$

素因数の和:16112

約数の個数: 48

約数和(自身を含む): 194382720

約数和(自身を除く): 113073580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 16069, 32138, 64276, 80345, 160690, 176759, 321380, 353518, 369587, 707036, 739174, 883795, 1478348, 1767590, 1847935, 3535180, 3695870, 4065457, 7391740, 8130914, 16261828, 20327285, 40654570, 81309140]

約数ペア:

[(1, 81309140), (2, 40654570), (4, 20327285), (5, 16261828), (10, 8130914), (11, 7391740), (20, 4065457), (22, 3695870), (23, 3535180), (44, 1847935), (46, 1767590), (55, 1478348), (92, 883795), (110, 739174), (115, 707036), (220, 369587), (230, 353518), (253, 321380), (460, 176759), (506, 160690), (1012, 80345), (1265, 64276), (2530, 32138), (5060, 16069)]