257639508

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{340793}}^1$

素因数の和:340813

約数の個数: 48

約数和(自身を含む): 763378560

約数和(自身を除く): 505739052

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 340793, 681586, 1022379, 1363172, 2044758, 2385551, 3067137, 4089516, 4771102, 6134274, 7156653, 9201411, 9542204, 12268548, 14313306, 18402822, 21469959, 28626612, 36805644, 42939918, 64409877, 85879836, 128819754, 257639508]

約数ペア:

[(1, 257639508), (2, 128819754), (3, 85879836), (4, 64409877), (6, 42939918), (7, 36805644), (9, 28626612), (12, 21469959), (14, 18402822), (18, 14313306), (21, 12268548), (27, 9542204), (28, 9201411), (36, 7156653), (42, 6134274), (54, 4771102), (63, 4089516), (84, 3067137), (108, 2385551), (126, 2044758), (189, 1363172), (252, 1022379), (378, 681586), (756, 340793)]