90557990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{881}}^1$

素因数の和:1448

約数の個数: 32

約数和(自身を含む): 172095840

約数和(自身を除く): 81537850

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 541, 881, 1082, 1762, 2705, 4405, 5410, 8810, 10279, 16739, 20558, 33478, 51395, 83695, 102790, 167390, 476621, 953242, 2383105, 4766210, 9055799, 18111598, 45278995, 90557990]

約数ペア:

[(1, 90557990), (2, 45278995), (5, 18111598), (10, 9055799), (19, 4766210), (38, 2383105), (95, 953242), (190, 476621), (541, 167390), (881, 102790), (1082, 83695), (1762, 51395), (2705, 33478), (4405, 20558), (5410, 16739), (8810, 10279)]