256379136

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{25679}}^1$

素因数の和:25711

約数の個数: 72

約数和(自身を含む): 734858880

約数和(自身を除く): 478479744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 624, 768, 832, 1248, 1664, 2496, 3328, 4992, 9984, 25679, 51358, 77037, 102716, 154074, 205432, 308148, 333827, 410864, 616296, 667654, 821728, 1001481, 1232592, 1335308, 1643456, 2002962, 2465184, 2670616, 3286912, 4005924, 4930368, 5341232, 6573824, 8011848, 9860736, 10682464, 16023696, 19721472, 21364928, 32047392, 42729856, 64094784, 85459712, 128189568, 256379136]

約数ペア:

[(1, 256379136), (2, 128189568), (3, 85459712), (4, 64094784), (6, 42729856), (8, 32047392), (12, 21364928), (13, 19721472), (16, 16023696), (24, 10682464), (26, 9860736), (32, 8011848), (39, 6573824), (48, 5341232), (52, 4930368), (64, 4005924), (78, 3286912), (96, 2670616), (104, 2465184), (128, 2002962), (156, 1643456), (192, 1335308), (208, 1232592), (256, 1001481), (312, 821728), (384, 667654), (416, 616296), (624, 410864), (768, 333827), (832, 308148), (1248, 205432), (1664, 154074), (2496, 102716), (3328, 77037), (4992, 51358), (9984, 25679)]