256218494

素因数分解:

$2^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{55291}}^1$

素因数の和:55631

約数の個数: 16

約数和(自身を含む): 440566656

約数和(自身を除く): 184348162

約数列:

[1, 2, 7, 14, 331, 662, 2317, 4634, 55291, 110582, 387037, 774074, 18301321, 36602642, 128109247, 256218494]

約数ペア:

[(1, 256218494), (2, 128109247), (7, 36602642), (14, 18301321), (331, 774074), (662, 387037), (2317, 110582), (4634, 55291)]