1278355589

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1\times {\mathrm{6551}}^1$

素因数の和:7076

約数の個数: 16

約数和(自身を含む): 1488404736

約数和(自身を除く): 210049147

約数列:

[1, 7, 61, 427, 457, 3199, 6551, 27877, 45857, 195139, 399611, 2797277, 2993807, 20956649, 182622227, 1278355589]

約数ペア:

[(1, 1278355589), (7, 182622227), (61, 20956649), (427, 2993807), (457, 2797277), (3199, 399611), (6551, 195139), (27877, 45857)]