20718096

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 61674624

約数和(自身を除く): 40956528

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 197, 313, 336, 394, 591, 626, 788, 939, 1182, 1252, 1379, 1576, 1878, 2191, 2364, 2504, 2758, 3152, 3756, 4137, 4382, 4728, 5008, 5516, 6573, 7512, 8274, 8764, 9456, 11032, 13146, 15024, 16548, 17528, 22064, 26292, 33096, 35056, 52584, 61661, 66192, 105168, 123322, 184983, 246644, 369966, 431627, 493288, 739932, 863254, 986576, 1294881, 1479864, 1726508, 2589762, 2959728, 3453016, 5179524, 6906032, 10359048, 20718096]

約数ペア:

[(1, 20718096), (2, 10359048), (3, 6906032), (4, 5179524), (6, 3453016), (7, 2959728), (8, 2589762), (12, 1726508), (14, 1479864), (16, 1294881), (21, 986576), (24, 863254), (28, 739932), (42, 493288), (48, 431627), (56, 369966), (84, 246644), (112, 184983), (168, 123322), (197, 105168), (313, 66192), (336, 61661), (394, 52584), (591, 35056), (626, 33096), (788, 26292), (939, 22064), (1182, 17528), (1252, 16548), (1379, 15024), (1576, 13146), (1878, 11032), (2191, 9456), (2364, 8764), (2504, 8274), (2758, 7512), (3152, 6573), (3756, 5516), (4137, 5008), (4382, 4728)]