220165318

素因数分解:

$2^1\times {\mathrm{37}}^2\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:688

約数の個数: 24

約数和(自身を含む): 342002304

約数和(自身を除く): 121836986

約数列:

[1, 2, 37, 74, 191, 382, 421, 842, 1369, 2738, 7067, 14134, 15577, 31154, 80411, 160822, 261479, 522958, 576349, 1152698, 2975207, 5950414, 110082659, 220165318]

約数ペア:

[(1, 220165318), (2, 110082659), (37, 5950414), (74, 2975207), (191, 1152698), (382, 576349), (421, 522958), (842, 261479), (1369, 160822), (2738, 80411), (7067, 31154), (14134, 15577)]