8870440

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1051}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 20072160

約数和(自身を除く): 11201720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1051, 1055, 1688, 2102, 2110, 4204, 4220, 5255, 8408, 8440, 10510, 21020, 42040, 221761, 443522, 887044, 1108805, 1774088, 2217610, 4435220, 8870440]

約数ペア:

[(1, 8870440), (2, 4435220), (4, 2217610), (5, 1774088), (8, 1108805), (10, 887044), (20, 443522), (40, 221761), (211, 42040), (422, 21020), (844, 10510), (1051, 8440), (1055, 8408), (1688, 5255), (2102, 4220), (2110, 4204)]