20973120

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3121}}^1$

素因数の和:3148

約数の個数: 112

約数和(自身を含む): 76126848

約数和(自身を除く): 55153728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3121, 3360, 6242, 6720, 9363, 12484, 15605, 18726, 21847, 24968, 31210, 37452, 43694, 46815, 49936, 62420, 65541, 74904, 87388, 93630, 99872, 109235, 124840, 131082, 149808, 174776, 187260, 199744, 218470, 249680, 262164, 299616, 327705, 349552, 374520, 436940, 499360, 524328, 599232, 655410, 699104, 749040, 873880, 998720, 1048656, 1310820, 1398208, 1498080, 1747760, 2097312, 2621640, 2996160, 3495520, 4194624, 5243280, 6991040, 10486560, 20973120]

約数ペア:

[(1, 20973120), (2, 10486560), (3, 6991040), (4, 5243280), (5, 4194624), (6, 3495520), (7, 2996160), (8, 2621640), (10, 2097312), (12, 1747760), (14, 1498080), (15, 1398208), (16, 1310820), (20, 1048656), (21, 998720), (24, 873880), (28, 749040), (30, 699104), (32, 655410), (35, 599232), (40, 524328), (42, 499360), (48, 436940), (56, 374520), (60, 349552), (64, 327705), (70, 299616), (80, 262164), (84, 249680), (96, 218470), (105, 199744), (112, 187260), (120, 174776), (140, 149808), (160, 131082), (168, 124840), (192, 109235), (210, 99872), (224, 93630), (240, 87388), (280, 74904), (320, 65541), (336, 62420), (420, 49936), (448, 46815), (480, 43694), (560, 37452), (672, 31210), (840, 24968), (960, 21847), (1120, 18726), (1344, 15605), (1680, 12484), (2240, 9363), (3121, 6720), (3360, 6242)]