180640900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{14929}}^1$

素因数の和:14965

約数の個数: 54

約数和(自身を含む): 430894730

約数和(自身を除く): 250253830

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 2420, 3025, 6050, 12100, 14929, 29858, 59716, 74645, 149290, 164219, 298580, 328438, 373225, 656876, 746450, 821095, 1492900, 1642190, 1806409, 3284380, 3612818, 4105475, 7225636, 8210950, 9032045, 16421900, 18064090, 36128180, 45160225, 90320450, 180640900]

約数ペア:

[(1, 180640900), (2, 90320450), (4, 45160225), (5, 36128180), (10, 18064090), (11, 16421900), (20, 9032045), (22, 8210950), (25, 7225636), (44, 4105475), (50, 3612818), (55, 3284380), (100, 1806409), (110, 1642190), (121, 1492900), (220, 821095), (242, 746450), (275, 656876), (484, 373225), (550, 328438), (605, 298580), (1100, 164219), (1210, 149290), (2420, 74645), (3025, 59716), (6050, 29858), (12100, 14929)]