81771345

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1621}}^1$

素因数の和:1710

約数の個数: 48

約数和(自身を含む): 151819200

約数和(自身を除く): 70047855

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 59, 95, 171, 177, 285, 295, 531, 855, 885, 1121, 1621, 2655, 3363, 4863, 5605, 8105, 10089, 14589, 16815, 24315, 30799, 50445, 72945, 92397, 95639, 153995, 277191, 286917, 461985, 478195, 860751, 1385955, 1434585, 1817141, 4303755, 5451423, 9085705, 16354269, 27257115, 81771345]

約数ペア:

[(1, 81771345), (3, 27257115), (5, 16354269), (9, 9085705), (15, 5451423), (19, 4303755), (45, 1817141), (57, 1434585), (59, 1385955), (95, 860751), (171, 478195), (177, 461985), (285, 286917), (295, 277191), (531, 153995), (855, 95639), (885, 92397), (1121, 72945), (1621, 50445), (2655, 30799), (3363, 24315), (4863, 16815), (5605, 14589), (8105, 10089)]