81663372

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{883}}^1$

素因数の和:1267

約数の個数: 72

約数和(自身を含む): 236827136

約数和(自身を除く): 155163764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 367, 734, 883, 1101, 1468, 1766, 2202, 2569, 2649, 3303, 3532, 4404, 5138, 5298, 6181, 6606, 7707, 7947, 10276, 10596, 12362, 13212, 15414, 15894, 18543, 23121, 24724, 30828, 31788, 37086, 46242, 55629, 74172, 92484, 111258, 222516, 324061, 648122, 972183, 1296244, 1944366, 2268427, 2916549, 3888732, 4536854, 5833098, 6805281, 9073708, 11666196, 13610562, 20415843, 27221124, 40831686, 81663372]

約数ペア:

[(1, 81663372), (2, 40831686), (3, 27221124), (4, 20415843), (6, 13610562), (7, 11666196), (9, 9073708), (12, 6805281), (14, 5833098), (18, 4536854), (21, 3888732), (28, 2916549), (36, 2268427), (42, 1944366), (63, 1296244), (84, 972183), (126, 648122), (252, 324061), (367, 222516), (734, 111258), (883, 92484), (1101, 74172), (1468, 55629), (1766, 46242), (2202, 37086), (2569, 31788), (2649, 30828), (3303, 24724), (3532, 23121), (4404, 18543), (5138, 15894), (5298, 15414), (6181, 13212), (6606, 12362), (7707, 10596), (7947, 10276)]