278424867

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 451035648

約数和(自身を除く): 172610781

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 353, 483, 497, 529, 1059, 1491, 1587, 1633, 2471, 3703, 4899, 7413, 8119, 11109, 11431, 24357, 25063, 34293, 37559, 56833, 75189, 112677, 170499, 175441, 186737, 262913, 526323, 560211, 576449, 788739, 1307159, 1729347, 3921477, 4035143, 12105429, 13258327, 39774981, 92808289, 278424867]

約数ペア:

[(1, 278424867), (3, 92808289), (7, 39774981), (21, 13258327), (23, 12105429), (69, 4035143), (71, 3921477), (161, 1729347), (213, 1307159), (353, 788739), (483, 576449), (497, 560211), (529, 526323), (1059, 262913), (1491, 186737), (1587, 175441), (1633, 170499), (2471, 112677), (3703, 75189), (4899, 56833), (7413, 37559), (8119, 34293), (11109, 25063), (11431, 24357)]