81370355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{2591}}^1$

素因数の和:3178

約数の個数: 16

約数和(自身を含む): 106748928

約数和(自身を除く): 25378573

約数列:

[1, 5, 11, 55, 571, 2591, 2855, 6281, 12955, 28501, 31405, 142505, 1479461, 7397305, 16274071, 81370355]

約数ペア:

[(1, 81370355), (5, 16274071), (11, 7397305), (55, 1479461), (571, 142505), (2591, 31405), (2855, 28501), (6281, 12955)]