257098660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{141263}}^1$

素因数の和:141292

約数の個数: 48

約数和(自身を含む): 664505856

約数和(自身を除く): 407407196

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 141263, 282526, 565052, 706315, 988841, 1412630, 1836419, 1977682, 2825260, 3672838, 3955364, 4944205, 7345676, 9182095, 9888410, 12854933, 18364190, 19776820, 25709866, 36728380, 51419732, 64274665, 128549330, 257098660]

約数ペア:

[(1, 257098660), (2, 128549330), (4, 64274665), (5, 51419732), (7, 36728380), (10, 25709866), (13, 19776820), (14, 18364190), (20, 12854933), (26, 9888410), (28, 9182095), (35, 7345676), (52, 4944205), (65, 3955364), (70, 3672838), (91, 2825260), (130, 1977682), (140, 1836419), (182, 1412630), (260, 988841), (364, 706315), (455, 565052), (910, 282526), (1820, 141263)]