40428220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{288773}}^1$

素因数の和:288789

約数の個数: 24

約数和(自身を含む): 97028064

約数和(自身を除く): 56599844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 288773, 577546, 1155092, 1443865, 2021411, 2887730, 4042822, 5775460, 8085644, 10107055, 20214110, 40428220]

約数ペア:

[(1, 40428220), (2, 20214110), (4, 10107055), (5, 8085644), (7, 5775460), (10, 4042822), (14, 2887730), (20, 2021411), (28, 1443865), (35, 1155092), (70, 577546), (140, 288773)]