256516994

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{433}}^1\times {\mathrm{2131}}^1$

素因数の和:2705

約数の個数: 16

約数和(自身を含む): 388620960

約数和(自身を除く): 132103966

約数列:

[1, 2, 139, 278, 433, 866, 2131, 4262, 60187, 120374, 296209, 592418, 922723, 1845446, 128258497, 256516994]

約数ペア:

[(1, 256516994), (2, 128258497), (139, 1845446), (278, 922723), (433, 592418), (866, 296209), (2131, 120374), (4262, 60187)]