8720408

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 16893360

約数和(自身を除く): 8172952

約数列:

[1, 2, 4, 8, 53, 106, 131, 157, 212, 262, 314, 424, 524, 628, 1048, 1256, 6943, 8321, 13886, 16642, 20567, 27772, 33284, 41134, 55544, 66568, 82268, 164536, 1090051, 2180102, 4360204, 8720408]

約数ペア:

[(1, 8720408), (2, 4360204), (4, 2180102), (8, 1090051), (53, 164536), (106, 82268), (131, 66568), (157, 55544), (212, 41134), (262, 33284), (314, 27772), (424, 20567), (524, 16642), (628, 13886), (1048, 8321), (1256, 6943)]