18536960

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:593

約数の個数: 80

約数和(自身を含む): 47950056

約数和(自身を除く): 29413096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 557, 640, 832, 1040, 1114, 1280, 1664, 2080, 2228, 2560, 2785, 3328, 4160, 4456, 5570, 6656, 7241, 8320, 8912, 11140, 14482, 16640, 17824, 22280, 28964, 33280, 35648, 36205, 44560, 57928, 71296, 72410, 89120, 115856, 142592, 144820, 178240, 231712, 285184, 289640, 356480, 463424, 579280, 712960, 926848, 1158560, 1425920, 1853696, 2317120, 3707392, 4634240, 9268480, 18536960]

約数ペア:

[(1, 18536960), (2, 9268480), (4, 4634240), (5, 3707392), (8, 2317120), (10, 1853696), (13, 1425920), (16, 1158560), (20, 926848), (26, 712960), (32, 579280), (40, 463424), (52, 356480), (64, 289640), (65, 285184), (80, 231712), (104, 178240), (128, 144820), (130, 142592), (160, 115856), (208, 89120), (256, 72410), (260, 71296), (320, 57928), (416, 44560), (512, 36205), (520, 35648), (557, 33280), (640, 28964), (832, 22280), (1040, 17824), (1114, 16640), (1280, 14482), (1664, 11140), (2080, 8912), (2228, 8320), (2560, 7241), (2785, 6656), (3328, 5570), (4160, 4456)]