280308

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 774144

約数和(自身を除く): 493836

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 71, 84, 94, 141, 142, 188, 213, 282, 284, 329, 426, 497, 564, 658, 852, 987, 994, 1316, 1491, 1974, 1988, 2982, 3337, 3948, 5964, 6674, 10011, 13348, 20022, 23359, 40044, 46718, 70077, 93436, 140154, 280308]

約数ペア:

[(1, 280308), (2, 140154), (3, 93436), (4, 70077), (6, 46718), (7, 40044), (12, 23359), (14, 20022), (21, 13348), (28, 10011), (42, 6674), (47, 5964), (71, 3948), (84, 3337), (94, 2982), (141, 1988), (142, 1974), (188, 1491), (213, 1316), (282, 994), (284, 987), (329, 852), (426, 658), (497, 564)]