400016253

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 735436800

約数和(自身を除く): 335420547

約数列:

[1, 3, 7, 13, 19, 21, 23, 39, 49, 57, 69, 91, 133, 147, 161, 247, 273, 299, 399, 437, 479, 483, 637, 741, 897, 931, 1127, 1311, 1437, 1729, 1911, 2093, 2793, 3059, 3353, 3381, 5187, 5681, 6227, 6279, 9101, 9177, 10059, 11017, 12103, 14651, 17043, 18681, 21413, 23471, 27303, 33051, 36309, 39767, 43589, 43953, 63707, 64239, 70413, 77119, 118313, 119301, 130767, 143221, 191121, 209323, 231357, 278369, 305123, 354939, 429663, 445949, 539833, 627969, 828191, 835107, 915369, 1002547, 1337847, 1465261, 1619499, 2484573, 2721199, 3007641, 4395783, 5797337, 7017829, 8163597, 10256827, 17392011, 19048393, 21053487, 30770481, 57145179, 133338751, 400016253]

約数ペア:

[(1, 400016253), (3, 133338751), (7, 57145179), (13, 30770481), (19, 21053487), (21, 19048393), (23, 17392011), (39, 10256827), (49, 8163597), (57, 7017829), (69, 5797337), (91, 4395783), (133, 3007641), (147, 2721199), (161, 2484573), (247, 1619499), (273, 1465261), (299, 1337847), (399, 1002547), (437, 915369), (479, 835107), (483, 828191), (637, 627969), (741, 539833), (897, 445949), (931, 429663), (1127, 354939), (1311, 305123), (1437, 278369), (1729, 231357), (1911, 209323), (2093, 191121), (2793, 143221), (3059, 130767), (3353, 119301), (3381, 118313), (5187, 77119), (5681, 70413), (6227, 64239), (6279, 63707), (9101, 43953), (9177, 43589), (10059, 39767), (11017, 36309), (12103, 33051), (14651, 27303), (17043, 23471), (18681, 21413)]