1720460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12289}}^1$

素因数の和:12305

約数の個数: 24

約数和(自身を含む): 4129440

約数和(自身を除く): 2408980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 12289, 24578, 49156, 61445, 86023, 122890, 172046, 245780, 344092, 430115, 860230, 1720460]

約数ペア:

[(1, 1720460), (2, 860230), (4, 430115), (5, 344092), (7, 245780), (10, 172046), (14, 122890), (20, 86023), (28, 61445), (35, 49156), (70, 24578), (140, 12289)]