81587240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4349}}^1$

素因数の和:4434

約数の個数: 64

約数和(自身を含む): 212976000

約数和(自身を除く): 131388760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 3752, 4349, 4690, 8698, 9380, 17396, 18760, 21745, 30443, 34792, 43490, 60886, 86980, 121772, 152215, 173960, 243544, 291383, 304430, 582766, 608860, 1165532, 1217720, 1456915, 2039681, 2331064, 2913830, 4079362, 5827660, 8158724, 10198405, 11655320, 16317448, 20396810, 40793620, 81587240]

約数ペア:

[(1, 81587240), (2, 40793620), (4, 20396810), (5, 16317448), (7, 11655320), (8, 10198405), (10, 8158724), (14, 5827660), (20, 4079362), (28, 2913830), (35, 2331064), (40, 2039681), (56, 1456915), (67, 1217720), (70, 1165532), (134, 608860), (140, 582766), (268, 304430), (280, 291383), (335, 243544), (469, 173960), (536, 152215), (670, 121772), (938, 86980), (1340, 60886), (1876, 43490), (2345, 34792), (2680, 30443), (3752, 21745), (4349, 18760), (4690, 17396), (8698, 9380)]