255528420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{608401}}^1$

素因数の和:608420

約数の個数: 48

約数和(自身を含む): 817692288

約数和(自身を除く): 562163868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 608401, 1216802, 1825203, 2433604, 3042005, 3650406, 4258807, 6084010, 7300812, 8517614, 9126015, 12168020, 12776421, 17035228, 18252030, 21294035, 25552842, 36504060, 42588070, 51105684, 63882105, 85176140, 127764210, 255528420]

約数ペア:

[(1, 255528420), (2, 127764210), (3, 85176140), (4, 63882105), (5, 51105684), (6, 42588070), (7, 36504060), (10, 25552842), (12, 21294035), (14, 18252030), (15, 17035228), (20, 12776421), (21, 12168020), (28, 9126015), (30, 8517614), (35, 7300812), (42, 6084010), (60, 4258807), (70, 3650406), (84, 3042005), (105, 2433604), (140, 1825203), (210, 1216802), (420, 608401)]