256757616

素因数分解:

$2^4\times 3^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{643}}^1$

素因数の和:763

約数の個数: 120

約数和(自身を含む): 747452160

約数和(自身を除く): 490694544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 47, 48, 59, 72, 94, 118, 141, 144, 177, 188, 236, 282, 354, 376, 423, 472, 531, 564, 643, 708, 752, 846, 944, 1062, 1128, 1286, 1416, 1692, 1929, 2124, 2256, 2572, 2773, 2832, 3384, 3858, 4248, 5144, 5546, 5787, 6768, 7716, 8319, 8496, 10288, 11092, 11574, 15432, 16638, 22184, 23148, 24957, 30221, 30864, 33276, 37937, 44368, 46296, 49914, 60442, 66552, 75874, 90663, 92592, 99828, 113811, 120884, 133104, 151748, 181326, 199656, 227622, 241768, 271989, 303496, 341433, 362652, 399312, 455244, 483536, 543978, 606992, 682866, 725304, 910488, 1087956, 1365732, 1450608, 1783039, 1820976, 2175912, 2731464, 3566078, 4351824, 5349117, 5462928, 7132156, 10698234, 14264312, 16047351, 21396468, 28528624, 32094702, 42792936, 64189404, 85585872, 128378808, 256757616]

約数ペア:

[(1, 256757616), (2, 128378808), (3, 85585872), (4, 64189404), (6, 42792936), (8, 32094702), (9, 28528624), (12, 21396468), (16, 16047351), (18, 14264312), (24, 10698234), (36, 7132156), (47, 5462928), (48, 5349117), (59, 4351824), (72, 3566078), (94, 2731464), (118, 2175912), (141, 1820976), (144, 1783039), (177, 1450608), (188, 1365732), (236, 1087956), (282, 910488), (354, 725304), (376, 682866), (423, 606992), (472, 543978), (531, 483536), (564, 455244), (643, 399312), (708, 362652), (752, 341433), (846, 303496), (944, 271989), (1062, 241768), (1128, 227622), (1286, 199656), (1416, 181326), (1692, 151748), (1929, 133104), (2124, 120884), (2256, 113811), (2572, 99828), (2773, 92592), (2832, 90663), (3384, 75874), (3858, 66552), (4248, 60442), (5144, 49914), (5546, 46296), (5787, 44368), (6768, 37937), (7716, 33276), (8319, 30864), (8496, 30221), (10288, 24957), (11092, 23148), (11574, 22184), (15432, 16638)]