256369568

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{12577}}^1$

素因数の和:12614

約数の個数: 72

約数和(自身を含む): 632346372

約数和(自身を除く): 375976804

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1274, 1456, 1568, 2548, 2912, 5096, 10192, 12577, 20384, 25154, 50308, 88039, 100616, 163501, 176078, 201232, 327002, 352156, 402464, 616273, 654004, 704312, 1144507, 1232546, 1308008, 1408624, 2289014, 2465092, 2616016, 2817248, 4578028, 4930184, 5232032, 8011549, 9156056, 9860368, 16023098, 18312112, 19720736, 32046196, 36624224, 64092392, 128184784, 256369568]

約数ペア:

[(1, 256369568), (2, 128184784), (4, 64092392), (7, 36624224), (8, 32046196), (13, 19720736), (14, 18312112), (16, 16023098), (26, 9860368), (28, 9156056), (32, 8011549), (49, 5232032), (52, 4930184), (56, 4578028), (91, 2817248), (98, 2616016), (104, 2465092), (112, 2289014), (182, 1408624), (196, 1308008), (208, 1232546), (224, 1144507), (364, 704312), (392, 654004), (416, 616273), (637, 402464), (728, 352156), (784, 327002), (1274, 201232), (1456, 176078), (1568, 163501), (2548, 100616), (2912, 88039), (5096, 50308), (10192, 25154), (12577, 20384)]