256391424

素因数分解:

$2^8\times 3^2\times {\mathrm{257}}^1\times {\mathrm{433}}^1$

素因数の和:712

約数の個数: 108

約数和(自身を含む): 743829996

約数和(自身を除く): 487438572

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 257, 288, 384, 433, 514, 576, 768, 771, 866, 1028, 1152, 1299, 1542, 1732, 2056, 2304, 2313, 2598, 3084, 3464, 3897, 4112, 4626, 5196, 6168, 6928, 7794, 8224, 9252, 10392, 12336, 13856, 15588, 16448, 18504, 20784, 24672, 27712, 31176, 32896, 37008, 41568, 49344, 55424, 62352, 65792, 74016, 83136, 98688, 110848, 111281, 124704, 148032, 166272, 197376, 222562, 249408, 296064, 332544, 333843, 445124, 498816, 592128, 667686, 890248, 997632, 1001529, 1335372, 1780496, 2003058, 2670744, 3560992, 4006116, 5341488, 7121984, 8012232, 10682976, 14243968, 16024464, 21365952, 28487936, 32048928, 42731904, 64097856, 85463808, 128195712, 256391424]

約数ペア:

[(1, 256391424), (2, 128195712), (3, 85463808), (4, 64097856), (6, 42731904), (8, 32048928), (9, 28487936), (12, 21365952), (16, 16024464), (18, 14243968), (24, 10682976), (32, 8012232), (36, 7121984), (48, 5341488), (64, 4006116), (72, 3560992), (96, 2670744), (128, 2003058), (144, 1780496), (192, 1335372), (256, 1001529), (257, 997632), (288, 890248), (384, 667686), (433, 592128), (514, 498816), (576, 445124), (768, 333843), (771, 332544), (866, 296064), (1028, 249408), (1152, 222562), (1299, 197376), (1542, 166272), (1732, 148032), (2056, 124704), (2304, 111281), (2313, 110848), (2598, 98688), (3084, 83136), (3464, 74016), (3897, 65792), (4112, 62352), (4626, 55424), (5196, 49344), (6168, 41568), (6928, 37008), (7794, 32896), (8224, 31176), (9252, 27712), (10392, 24672), (12336, 20784), (13856, 18504), (15588, 16448)]