261457920

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{2837}}^1$

素因数の和:2870

約数の個数: 144

約数和(自身を含む): 906485580

約数和(自身を除く): 645027660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1024, 1152, 1280, 1440, 1536, 1920, 2048, 2304, 2560, 2837, 2880, 3072, 3840, 4608, 5120, 5674, 5760, 6144, 7680, 8511, 9216, 10240, 11348, 11520, 14185, 15360, 17022, 18432, 22696, 23040, 25533, 28370, 30720, 34044, 42555, 45392, 46080, 51066, 56740, 68088, 85110, 90784, 92160, 102132, 113480, 127665, 136176, 170220, 181568, 204264, 226960, 255330, 272352, 340440, 363136, 408528, 453920, 510660, 544704, 680880, 726272, 817056, 907840, 1021320, 1089408, 1361760, 1452544, 1634112, 1815680, 2042640, 2178816, 2723520, 2905088, 3268224, 3631360, 4085280, 4357632, 5447040, 5810176, 6536448, 7262720, 8170560, 8715264, 10894080, 13072896, 14525440, 16341120, 17430528, 21788160, 26145792, 29050880, 32682240, 43576320, 52291584, 65364480, 87152640, 130728960, 261457920]

約数ペア:

[(1, 261457920), (2, 130728960), (3, 87152640), (4, 65364480), (5, 52291584), (6, 43576320), (8, 32682240), (9, 29050880), (10, 26145792), (12, 21788160), (15, 17430528), (16, 16341120), (18, 14525440), (20, 13072896), (24, 10894080), (30, 8715264), (32, 8170560), (36, 7262720), (40, 6536448), (45, 5810176), (48, 5447040), (60, 4357632), (64, 4085280), (72, 3631360), (80, 3268224), (90, 2905088), (96, 2723520), (120, 2178816), (128, 2042640), (144, 1815680), (160, 1634112), (180, 1452544), (192, 1361760), (240, 1089408), (256, 1021320), (288, 907840), (320, 817056), (360, 726272), (384, 680880), (480, 544704), (512, 510660), (576, 453920), (640, 408528), (720, 363136), (768, 340440), (960, 272352), (1024, 255330), (1152, 226960), (1280, 204264), (1440, 181568), (1536, 170220), (1920, 136176), (2048, 127665), (2304, 113480), (2560, 102132), (2837, 92160), (2880, 90784), (3072, 85110), (3840, 68088), (4608, 56740), (5120, 51066), (5674, 46080), (5760, 45392), (6144, 42555), (7680, 34044), (8511, 30720), (9216, 28370), (10240, 25533), (11348, 23040), (11520, 22696), (14185, 18432), (15360, 17022)]