81640900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{74219}}^1$

素因数の和:74244

約数の個数: 36

約数和(自身を含む): 193268880

約数和(自身を除く): 111627980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 74219, 148438, 296876, 371095, 742190, 816409, 1484380, 1632818, 1855475, 3265636, 3710950, 4082045, 7421900, 8164090, 16328180, 20410225, 40820450, 81640900]

約数ペア:

[(1, 81640900), (2, 40820450), (4, 20410225), (5, 16328180), (10, 8164090), (11, 7421900), (20, 4082045), (22, 3710950), (25, 3265636), (44, 1855475), (50, 1632818), (55, 1484380), (100, 816409), (110, 742190), (220, 371095), (275, 296876), (550, 148438), (1100, 74219)]