287157049340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2051121781}}^1$

素因数の和:2051121797

約数の個数: 24

約数和(自身を含む): 689176918752

約数和(自身を除く): 402019869412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2051121781, 4102243562, 8204487124, 10255608905, 14357852467, 20511217810, 28715704934, 41022435620, 57431409868, 71789262335, 143578524670, 287157049340]

約数ペア:

[(1, 287157049340), (2, 143578524670), (4, 71789262335), (5, 57431409868), (7, 41022435620), (10, 28715704934), (14, 20511217810), (20, 14357852467), (28, 10255608905), (35, 8204487124), (70, 4102243562), (140, 2051121781)]