89746840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31601}}^1$

素因数の和:31683

約数の個数: 32

約数和(自身を含む): 204780960

約数和(自身を除く): 115034120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 31601, 63202, 126404, 158005, 252808, 316010, 632020, 1264040, 2243671, 4487342, 8974684, 11218355, 17949368, 22436710, 44873420, 89746840]

約数ペア:

[(1, 89746840), (2, 44873420), (4, 22436710), (5, 17949368), (8, 11218355), (10, 8974684), (20, 4487342), (40, 2243671), (71, 1264040), (142, 632020), (284, 316010), (355, 252808), (568, 158005), (710, 126404), (1420, 63202), (2840, 31601)]