781364080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1395293}}^1$

素因数の和:1395313

約数の個数: 40

約数和(自身を含む): 2076197472

約数和(自身を除く): 1294833392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1395293, 2790586, 5581172, 6976465, 9767051, 11162344, 13952930, 19534102, 22324688, 27905860, 39068204, 48835255, 55811720, 78136408, 97670510, 111623440, 156272816, 195341020, 390682040, 781364080]

約数ペア:

[(1, 781364080), (2, 390682040), (4, 195341020), (5, 156272816), (7, 111623440), (8, 97670510), (10, 78136408), (14, 55811720), (16, 48835255), (20, 39068204), (28, 27905860), (35, 22324688), (40, 19534102), (56, 13952930), (70, 11162344), (80, 9767051), (112, 6976465), (140, 5581172), (280, 2790586), (560, 1395293)]