20979340368

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1328479}}^1$

素因数の和:1328544

約数の個数: 80

約数和(自身を含む): 63256903680

約数和(自身を除く): 42277563312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 47, 48, 56, 84, 94, 112, 141, 168, 188, 282, 329, 336, 376, 564, 658, 752, 987, 1128, 1316, 1974, 2256, 2632, 3948, 5264, 7896, 15792, 1328479, 2656958, 3985437, 5313916, 7970874, 9299353, 10627832, 15941748, 18598706, 21255664, 27898059, 31883496, 37197412, 55796118, 62438513, 63766992, 74394824, 111592236, 124877026, 148789648, 187315539, 223184472, 249754052, 374631078, 437069591, 446368944, 499508104, 749262156, 874139182, 999016208, 1311208773, 1498524312, 1748278364, 2622417546, 2997048624, 3496556728, 5244835092, 6993113456, 10489670184, 20979340368]

約数ペア:

[(1, 20979340368), (2, 10489670184), (3, 6993113456), (4, 5244835092), (6, 3496556728), (7, 2997048624), (8, 2622417546), (12, 1748278364), (14, 1498524312), (16, 1311208773), (21, 999016208), (24, 874139182), (28, 749262156), (42, 499508104), (47, 446368944), (48, 437069591), (56, 374631078), (84, 249754052), (94, 223184472), (112, 187315539), (141, 148789648), (168, 124877026), (188, 111592236), (282, 74394824), (329, 63766992), (336, 62438513), (376, 55796118), (564, 37197412), (658, 31883496), (752, 27898059), (987, 21255664), (1128, 18598706), (1316, 15941748), (1974, 10627832), (2256, 9299353), (2632, 7970874), (3948, 5313916), (5264, 3985437), (7896, 2656958), (15792, 1328479)]