664944

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{1979}}^1$

素因数の和:1997

約数の個数: 40

約数和(自身を含む): 1964160

約数和(自身を除く): 1299216

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 1979, 3958, 5937, 7916, 11874, 13853, 15832, 23748, 27706, 31664, 41559, 47496, 55412, 83118, 94992, 110824, 166236, 221648, 332472, 664944]

約数ペア:

[(1, 664944), (2, 332472), (3, 221648), (4, 166236), (6, 110824), (7, 94992), (8, 83118), (12, 55412), (14, 47496), (16, 41559), (21, 31664), (24, 27706), (28, 23748), (42, 15832), (48, 13853), (56, 11874), (84, 7916), (112, 5937), (168, 3958), (336, 1979)]