90210290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{24989}}^1$

素因数の和:25034

約数の個数: 24

約数和(自身を含む): 171381420

約数和(自身を除く): 81171130

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 24989, 49978, 124945, 249890, 474791, 949582, 2373955, 4747910, 9021029, 18042058, 45105145, 90210290]

約数ペア:

[(1, 90210290), (2, 45105145), (5, 18042058), (10, 9021029), (19, 4747910), (38, 2373955), (95, 949582), (190, 474791), (361, 249890), (722, 124945), (1805, 49978), (3610, 24989)]