256389264

素因数分解:

$2^4\times 3^2\times {\mathrm{1780481}}^1$

素因数の和:1780495

約数の個数: 30

約数和(自身を含む): 717534246

約数和(自身を除く): 461144982

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 1780481, 3560962, 5341443, 7121924, 10682886, 14243848, 16024329, 21365772, 28487696, 32048658, 42731544, 64097316, 85463088, 128194632, 256389264]

約数ペア:

[(1, 256389264), (2, 128194632), (3, 85463088), (4, 64097316), (6, 42731544), (8, 32048658), (9, 28487696), (12, 21365772), (16, 16024329), (18, 14243848), (24, 10682886), (36, 7121924), (48, 5341443), (72, 3560962), (144, 1780481)]