12821480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1579}}^1$

素因数の和:1626

約数の個数: 64

約数和(自身を含む): 34128000

約数和(自身を除く): 21306520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1579, 1624, 2030, 3158, 4060, 6316, 7895, 8120, 11053, 12632, 15790, 22106, 31580, 44212, 45791, 55265, 63160, 88424, 91582, 110530, 183164, 221060, 228955, 320537, 366328, 442120, 457910, 641074, 915820, 1282148, 1602685, 1831640, 2564296, 3205370, 6410740, 12821480]

約数ペア:

[(1, 12821480), (2, 6410740), (4, 3205370), (5, 2564296), (7, 1831640), (8, 1602685), (10, 1282148), (14, 915820), (20, 641074), (28, 457910), (29, 442120), (35, 366328), (40, 320537), (56, 228955), (58, 221060), (70, 183164), (116, 110530), (140, 91582), (145, 88424), (203, 63160), (232, 55265), (280, 45791), (290, 44212), (406, 31580), (580, 22106), (812, 15790), (1015, 12632), (1160, 11053), (1579, 8120), (1624, 7895), (2030, 6316), (3158, 4060)]