80865920

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4357}}^1$

素因数の和:4405

約数の個数: 64

約数和(自身を含む): 200032200

約数和(自身を除く): 119166280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1856, 2320, 3712, 4357, 4640, 8714, 9280, 17428, 18560, 21785, 34856, 43570, 69712, 87140, 126353, 139424, 174280, 252706, 278848, 348560, 505412, 557696, 631765, 697120, 1010824, 1263530, 1394240, 2021648, 2527060, 2788480, 4043296, 5054120, 8086592, 10108240, 16173184, 20216480, 40432960, 80865920]

約数ペア:

[(1, 80865920), (2, 40432960), (4, 20216480), (5, 16173184), (8, 10108240), (10, 8086592), (16, 5054120), (20, 4043296), (29, 2788480), (32, 2527060), (40, 2021648), (58, 1394240), (64, 1263530), (80, 1010824), (116, 697120), (128, 631765), (145, 557696), (160, 505412), (232, 348560), (290, 278848), (320, 252706), (464, 174280), (580, 139424), (640, 126353), (928, 87140), (1160, 69712), (1856, 43570), (2320, 34856), (3712, 21785), (4357, 18560), (4640, 17428), (8714, 9280)]