18120904

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 35087040

約数和(自身を除く): 16966136

約数列:

[1, 2, 4, 8, 61, 71, 122, 142, 244, 284, 488, 523, 568, 1046, 2092, 4184, 4331, 8662, 17324, 31903, 34648, 37133, 63806, 74266, 127612, 148532, 255224, 297064, 2265113, 4530226, 9060452, 18120904]

約数ペア:

[(1, 18120904), (2, 9060452), (4, 4530226), (8, 2265113), (61, 297064), (71, 255224), (122, 148532), (142, 127612), (244, 74266), (284, 63806), (488, 37133), (523, 34648), (568, 31903), (1046, 17324), (2092, 8662), (4184, 4331)]