128412872

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{32297}}^1$

素因数の和:32381

約数の個数: 32

約数和(自身を含む): 279054720

約数和(自身を除く): 150641848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 32297, 64594, 129188, 226079, 258376, 452158, 904316, 1808632, 2293087, 4586174, 9172348, 16051609, 18344696, 32103218, 64206436, 128412872]

約数ペア:

[(1, 128412872), (2, 64206436), (4, 32103218), (7, 18344696), (8, 16051609), (14, 9172348), (28, 4586174), (56, 2293087), (71, 1808632), (142, 904316), (284, 452158), (497, 258376), (568, 226079), (994, 129188), (1988, 64594), (3976, 32297)]