256867996

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{10831}}^1$

素因数の和:10871

約数の個数: 54

約数和(自身を含む): 574821744

約数和(自身を除く): 317953748

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 847, 1078, 1694, 2156, 3388, 5929, 10831, 11858, 21662, 23716, 43324, 75817, 119141, 151634, 238282, 303268, 476564, 530719, 833987, 1061438, 1310551, 1667974, 2122876, 2621102, 3335948, 5242204, 5837909, 9173857, 11675818, 18347714, 23351636, 36695428, 64216999, 128433998, 256867996]

約数ペア:

[(1, 256867996), (2, 128433998), (4, 64216999), (7, 36695428), (11, 23351636), (14, 18347714), (22, 11675818), (28, 9173857), (44, 5837909), (49, 5242204), (77, 3335948), (98, 2621102), (121, 2122876), (154, 1667974), (196, 1310551), (242, 1061438), (308, 833987), (484, 530719), (539, 476564), (847, 303268), (1078, 238282), (1694, 151634), (2156, 119141), (3388, 75817), (5929, 43324), (10831, 23716), (11858, 21662)]