1277777060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{128549}}^1$

素因数の和:128636

約数の個数: 48

約数和(自身を含む): 3109881600

約数和(自身を除く): 1832104540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 128549, 257098, 514196, 642745, 899843, 1285490, 1799686, 2570980, 3599372, 4499215, 8998430, 9126979, 17996860, 18253958, 36507916, 45634895, 63888853, 91269790, 127777706, 182539580, 255555412, 319444265, 638888530, 1277777060]

約数ペア:

[(1, 1277777060), (2, 638888530), (4, 319444265), (5, 255555412), (7, 182539580), (10, 127777706), (14, 91269790), (20, 63888853), (28, 45634895), (35, 36507916), (70, 18253958), (71, 17996860), (140, 9126979), (142, 8998430), (284, 4499215), (355, 3599372), (497, 2570980), (710, 1799686), (994, 1285490), (1420, 899843), (1988, 642745), (2485, 514196), (4970, 257098), (9940, 128549)]