81930915

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 160340544

約数和(自身を除く): 78409629

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 121, 123, 165, 205, 363, 367, 369, 451, 495, 605, 615, 1089, 1101, 1353, 1815, 1835, 1845, 2255, 3303, 4037, 4059, 4961, 5445, 5505, 6765, 12111, 14883, 15047, 16515, 20185, 20295, 24805, 36333, 44407, 44649, 45141, 60555, 74415, 75235, 133221, 135423, 165517, 181665, 222035, 223245, 225705, 399663, 496551, 666105, 677115, 827585, 1489653, 1820687, 1998315, 2482755, 5462061, 7448265, 9103435, 16386183, 27310305, 81930915]

約数ペア:

[(1, 81930915), (3, 27310305), (5, 16386183), (9, 9103435), (11, 7448265), (15, 5462061), (33, 2482755), (41, 1998315), (45, 1820687), (55, 1489653), (99, 827585), (121, 677115), (123, 666105), (165, 496551), (205, 399663), (363, 225705), (367, 223245), (369, 222035), (451, 181665), (495, 165517), (605, 135423), (615, 133221), (1089, 75235), (1101, 74415), (1353, 60555), (1815, 45141), (1835, 44649), (1845, 44407), (2255, 36333), (3303, 24805), (4037, 20295), (4059, 20185), (4961, 16515), (5445, 15047), (5505, 14883), (6765, 12111)]