81905280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1471}}^1$

素因数の和:1522

約数の個数: 128

約数和(自身を含む): 270259200

約数和(自身を除く): 188353920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 128, 145, 160, 174, 192, 232, 240, 290, 320, 348, 384, 435, 464, 480, 580, 640, 696, 870, 928, 960, 1160, 1392, 1471, 1740, 1856, 1920, 2320, 2784, 2942, 3480, 3712, 4413, 4640, 5568, 5884, 6960, 7355, 8826, 9280, 11136, 11768, 13920, 14710, 17652, 18560, 22065, 23536, 27840, 29420, 35304, 42659, 44130, 47072, 55680, 58840, 70608, 85318, 88260, 94144, 117680, 127977, 141216, 170636, 176520, 188288, 213295, 235360, 255954, 282432, 341272, 353040, 426590, 470720, 511908, 564864, 639885, 682544, 706080, 853180, 941440, 1023816, 1279770, 1365088, 1412160, 1706360, 2047632, 2559540, 2730176, 2824320, 3412720, 4095264, 5119080, 5460352, 6825440, 8190528, 10238160, 13650880, 16381056, 20476320, 27301760, 40952640, 81905280]

約数ペア:

[(1, 81905280), (2, 40952640), (3, 27301760), (4, 20476320), (5, 16381056), (6, 13650880), (8, 10238160), (10, 8190528), (12, 6825440), (15, 5460352), (16, 5119080), (20, 4095264), (24, 3412720), (29, 2824320), (30, 2730176), (32, 2559540), (40, 2047632), (48, 1706360), (58, 1412160), (60, 1365088), (64, 1279770), (80, 1023816), (87, 941440), (96, 853180), (116, 706080), (120, 682544), (128, 639885), (145, 564864), (160, 511908), (174, 470720), (192, 426590), (232, 353040), (240, 341272), (290, 282432), (320, 255954), (348, 235360), (384, 213295), (435, 188288), (464, 176520), (480, 170636), (580, 141216), (640, 127977), (696, 117680), (870, 94144), (928, 88260), (960, 85318), (1160, 70608), (1392, 58840), (1471, 55680), (1740, 47072), (1856, 44130), (1920, 42659), (2320, 35304), (2784, 29420), (2942, 27840), (3480, 23536), (3712, 22065), (4413, 18560), (4640, 17652), (5568, 14710), (5884, 13920), (6960, 11768), (7355, 11136), (8826, 9280)]