161503604

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{139709}}^1$

素因数の和:139747

約数の個数: 18

約数和(自身を含む): 300236790

約数和(自身を除く): 138733186

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 139709, 279418, 558836, 2375053, 4750106, 9500212, 40375901, 80751802, 161503604]

約数ペア:

[(1, 161503604), (2, 80751802), (4, 40375901), (17, 9500212), (34, 4750106), (68, 2375053), (289, 558836), (578, 279418), (1156, 139709)]