873588820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{21401}}^1$

素因数の和:21580

約数の個数: 48

約数和(自身を含む): 1988331408

約数和(自身を除く): 1114742588

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1570, 2041, 3140, 4082, 8164, 10205, 20410, 21401, 40820, 42802, 85604, 107005, 214010, 278213, 428020, 556426, 1112852, 1391065, 2782130, 3359957, 5564260, 6719914, 13439828, 16799785, 33599570, 43679441, 67199140, 87358882, 174717764, 218397205, 436794410, 873588820]

約数ペア:

[(1, 873588820), (2, 436794410), (4, 218397205), (5, 174717764), (10, 87358882), (13, 67199140), (20, 43679441), (26, 33599570), (52, 16799785), (65, 13439828), (130, 6719914), (157, 5564260), (260, 3359957), (314, 2782130), (628, 1391065), (785, 1112852), (1570, 556426), (2041, 428020), (3140, 278213), (4082, 214010), (8164, 107005), (10205, 85604), (20410, 42802), (21401, 40820)]