9990992090

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1109}}^1\times {\mathrm{5527}}^1$

素因数の和:6806

約数の個数: 32

約数和(自身を含む): 18113708160

約数和(自身を除く): 8122716070

約数列:

[1, 2, 5, 10, 163, 326, 815, 1109, 1630, 2218, 5527, 5545, 11054, 11090, 27635, 55270, 180767, 361534, 900901, 903835, 1801802, 1807670, 4504505, 6129443, 9009010, 12258886, 30647215, 61294430, 999099209, 1998198418, 4995496045, 9990992090]

約数ペア:

[(1, 9990992090), (2, 4995496045), (5, 1998198418), (10, 999099209), (163, 61294430), (326, 30647215), (815, 12258886), (1109, 9009010), (1630, 6129443), (2218, 4504505), (5527, 1807670), (5545, 1801802), (11054, 903835), (11090, 900901), (27635, 361534), (55270, 180767)]