81180

素因数分解:

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

素因数の和:67

約数の個数: 72

約数和(自身を含む): 275184

約数和(自身を除く): 194004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 246, 330, 369, 396, 410, 451, 492, 495, 615, 660, 738, 820, 902, 990, 1230, 1353, 1476, 1804, 1845, 1980, 2255, 2460, 2706, 3690, 4059, 4510, 5412, 6765, 7380, 8118, 9020, 13530, 16236, 20295, 27060, 40590, 81180]

約数ペア:

[(1, 81180), (2, 40590), (3, 27060), (4, 20295), (5, 16236), (6, 13530), (9, 9020), (10, 8118), (11, 7380), (12, 6765), (15, 5412), (18, 4510), (20, 4059), (22, 3690), (30, 2706), (33, 2460), (36, 2255), (41, 1980), (44, 1845), (45, 1804), (55, 1476), (60, 1353), (66, 1230), (82, 990), (90, 902), (99, 820), (110, 738), (123, 660), (132, 615), (164, 495), (165, 492), (180, 451), (198, 410), (205, 396), (220, 369), (246, 330)]