81600640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:270

約数の個数: 128

約数和(自身を含む): 217235520

約数和(自身を除く): 135634880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 67, 80, 88, 110, 128, 134, 160, 173, 176, 220, 268, 320, 335, 346, 352, 440, 536, 640, 670, 692, 704, 737, 865, 880, 1072, 1340, 1384, 1408, 1474, 1730, 1760, 1903, 2144, 2680, 2768, 2948, 3460, 3520, 3685, 3806, 4288, 5360, 5536, 5896, 6920, 7040, 7370, 7612, 8576, 9515, 10720, 11072, 11591, 11792, 13840, 14740, 15224, 19030, 21440, 22144, 23182, 23584, 27680, 29480, 30448, 38060, 42880, 46364, 47168, 55360, 57955, 58960, 60896, 76120, 92728, 94336, 110720, 115910, 117920, 121792, 127501, 152240, 185456, 231820, 235840, 243584, 255002, 304480, 370912, 463640, 471680, 510004, 608960, 637505, 741824, 927280, 1020008, 1217920, 1275010, 1483648, 1854560, 2040016, 2550020, 3709120, 4080032, 5100040, 7418240, 8160064, 10200080, 16320128, 20400160, 40800320, 81600640]

約数ペア:

[(1, 81600640), (2, 40800320), (4, 20400160), (5, 16320128), (8, 10200080), (10, 8160064), (11, 7418240), (16, 5100040), (20, 4080032), (22, 3709120), (32, 2550020), (40, 2040016), (44, 1854560), (55, 1483648), (64, 1275010), (67, 1217920), (80, 1020008), (88, 927280), (110, 741824), (128, 637505), (134, 608960), (160, 510004), (173, 471680), (176, 463640), (220, 370912), (268, 304480), (320, 255002), (335, 243584), (346, 235840), (352, 231820), (440, 185456), (536, 152240), (640, 127501), (670, 121792), (692, 117920), (704, 115910), (737, 110720), (865, 94336), (880, 92728), (1072, 76120), (1340, 60896), (1384, 58960), (1408, 57955), (1474, 55360), (1730, 47168), (1760, 46364), (1903, 42880), (2144, 38060), (2680, 30448), (2768, 29480), (2948, 27680), (3460, 23584), (3520, 23182), (3685, 22144), (3806, 21440), (4288, 19030), (5360, 15224), (5536, 14740), (5896, 13840), (6920, 11792), (7040, 11591), (7370, 11072), (7612, 10720), (8576, 9515)]