257291264

素因数分解:

$2^{10}\times {\mathrm{251261}}^1$

素因数の和:251281

約数の個数: 22

約数和(自身を含む): 514333314

約数和(自身を除く): 257042050

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 251261, 502522, 1005044, 2010088, 4020176, 8040352, 16080704, 32161408, 64322816, 128645632, 257291264]

約数ペア:

[(1, 257291264), (2, 128645632), (4, 64322816), (8, 32161408), (16, 16080704), (32, 8040352), (64, 4020176), (128, 2010088), (256, 1005044), (512, 502522), (1024, 251261)]