311399480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1112141}}^1$

素因数の和:1112159

約数の個数: 32

約数和(自身を含む): 800742240

約数和(自身を除く): 489342760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1112141, 2224282, 4448564, 5560705, 7784987, 8897128, 11121410, 15569974, 22242820, 31139948, 38924935, 44485640, 62279896, 77849870, 155699740, 311399480]

約数ペア:

[(1, 311399480), (2, 155699740), (4, 77849870), (5, 62279896), (7, 44485640), (8, 38924935), (10, 31139948), (14, 22242820), (20, 15569974), (28, 11121410), (35, 8897128), (40, 7784987), (56, 5560705), (70, 4448564), (140, 2224282), (280, 1112141)]