20197968

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1279}}^1$

素因数の和:1344

約数の個数: 80

約数和(自身を含む): 60948480

約数和(自身を除く): 40750512

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, 1279, 1316, 1974, 2256, 2558, 2632, 3837, 3948, 5116, 5264, 7674, 7896, 8953, 10232, 15348, 15792, 17906, 20464, 26859, 30696, 35812, 53718, 60113, 61392, 71624, 107436, 120226, 143248, 180339, 214872, 240452, 360678, 420791, 429744, 480904, 721356, 841582, 961808, 1262373, 1442712, 1683164, 2524746, 2885424, 3366328, 5049492, 6732656, 10098984, 20197968]

約数ペア:

[(1, 20197968), (2, 10098984), (3, 6732656), (4, 5049492), (6, 3366328), (7, 2885424), (8, 2524746), (12, 1683164), (14, 1442712), (16, 1262373), (21, 961808), (24, 841582), (28, 721356), (42, 480904), (47, 429744), (48, 420791), (56, 360678), (84, 240452), (94, 214872), (112, 180339), (141, 143248), (168, 120226), (188, 107436), (282, 71624), (329, 61392), (336, 60113), (376, 53718), (564, 35812), (658, 30696), (752, 26859), (987, 20464), (1128, 17906), (1279, 15792), (1316, 15348), (1974, 10232), (2256, 8953), (2558, 7896), (2632, 7674), (3837, 5264), (3948, 5116)]