81499156

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{70501}}^1$

素因数の和:70539

約数の個数: 18

約数和(自身を含む): 151508798

約数和(自身を除く): 70009642

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 70501, 141002, 282004, 1198517, 2397034, 4794068, 20374789, 40749578, 81499156]

約数ペア:

[(1, 81499156), (2, 40749578), (4, 20374789), (17, 4794068), (34, 2397034), (68, 1198517), (289, 282004), (578, 141002), (1156, 70501)]