311282420

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{24281}}^1$

素因数の和:24931

約数の個数: 24

約数和(自身を含む): 654739848

約数和(自身を除く): 343457428

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 24281, 48562, 97124, 121405, 242810, 485620, 15564121, 31128242, 62256484, 77820605, 155641210, 311282420]

約数ペア:

[(1, 311282420), (2, 155641210), (4, 77820605), (5, 62256484), (10, 31128242), (20, 15564121), (641, 485620), (1282, 242810), (2564, 121405), (3205, 97124), (6410, 48562), (12820, 24281)]