261890368

素因数分解:

$2^6\times {\mathrm{199}}^1\times {\mathrm{20563}}^1$

素因数の和:20774

約数の個数: 28

約数和(自身を含む): 522325600

約数和(自身を除く): 260435232

約数列:

[1, 2, 4, 8, 16, 32, 64, 199, 398, 796, 1592, 3184, 6368, 12736, 20563, 41126, 82252, 164504, 329008, 658016, 1316032, 4092037, 8184074, 16368148, 32736296, 65472592, 130945184, 261890368]

約数ペア:

[(1, 261890368), (2, 130945184), (4, 65472592), (8, 32736296), (16, 16368148), (32, 8184074), (64, 4092037), (199, 1316032), (398, 658016), (796, 329008), (1592, 164504), (3184, 82252), (6368, 41126), (12736, 20563)]