20615040

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1193}}^1$

素因数の和:1221

約数の個数: 128

約数和(自身を含む): 73072800

約数和(自身を除く): 52457760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1193, 1440, 1728, 1920, 2160, 2386, 2880, 3456, 3579, 4320, 4772, 5760, 5965, 7158, 8640, 9544, 10737, 11930, 14316, 17280, 17895, 19088, 21474, 23860, 28632, 32211, 35790, 38176, 42948, 47720, 53685, 57264, 64422, 71580, 76352, 85896, 95440, 107370, 114528, 128844, 143160, 152704, 161055, 171792, 190880, 214740, 229056, 257688, 286320, 322110, 343584, 381760, 429480, 458112, 515376, 572640, 644220, 687168, 763520, 858960, 1030752, 1145280, 1288440, 1374336, 1717920, 2061504, 2290560, 2576880, 3435840, 4123008, 5153760, 6871680, 10307520, 20615040]

約数ペア:

[(1, 20615040), (2, 10307520), (3, 6871680), (4, 5153760), (5, 4123008), (6, 3435840), (8, 2576880), (9, 2290560), (10, 2061504), (12, 1717920), (15, 1374336), (16, 1288440), (18, 1145280), (20, 1030752), (24, 858960), (27, 763520), (30, 687168), (32, 644220), (36, 572640), (40, 515376), (45, 458112), (48, 429480), (54, 381760), (60, 343584), (64, 322110), (72, 286320), (80, 257688), (90, 229056), (96, 214740), (108, 190880), (120, 171792), (128, 161055), (135, 152704), (144, 143160), (160, 128844), (180, 114528), (192, 107370), (216, 95440), (240, 85896), (270, 76352), (288, 71580), (320, 64422), (360, 57264), (384, 53685), (432, 47720), (480, 42948), (540, 38176), (576, 35790), (640, 32211), (720, 28632), (864, 23860), (960, 21474), (1080, 19088), (1152, 17895), (1193, 17280), (1440, 14316), (1728, 11930), (1920, 10737), (2160, 9544), (2386, 8640), (2880, 7158), (3456, 5965), (3579, 5760), (4320, 4772)]