640540858

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1\times {\mathrm{1163}}^1$

素因数の和:1446

約数の個数: 32

約数和(自身を含む): 1034861184

約数和(自身を除く): 394320326

約数列:

[1, 2, 17, 34, 97, 167, 194, 334, 1163, 1649, 2326, 2839, 3298, 5678, 16199, 19771, 32398, 39542, 112811, 194221, 225622, 275383, 388442, 550766, 1917787, 3301757, 3835574, 6603514, 18839437, 37678874, 320270429, 640540858]

約数ペア:

[(1, 640540858), (2, 320270429), (17, 37678874), (34, 18839437), (97, 6603514), (167, 3835574), (194, 3301757), (334, 1917787), (1163, 550766), (1649, 388442), (2326, 275383), (2839, 225622), (3298, 194221), (5678, 112811), (16199, 39542), (19771, 32398)]