127977980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21401}}^1$

素因数の和:21446

約数の個数: 48

約数和(自身を含む): 302025024

約数和(自身を除く): 174047044

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5980, 21401, 42802, 85604, 107005, 214010, 278213, 428020, 492223, 556426, 984446, 1112852, 1391065, 1968892, 2461115, 2782130, 4922230, 5564260, 6398899, 9844460, 12797798, 25595596, 31994495, 63988990, 127977980]

約数ペア:

[(1, 127977980), (2, 63988990), (4, 31994495), (5, 25595596), (10, 12797798), (13, 9844460), (20, 6398899), (23, 5564260), (26, 4922230), (46, 2782130), (52, 2461115), (65, 1968892), (92, 1391065), (115, 1112852), (130, 984446), (230, 556426), (260, 492223), (299, 428020), (460, 278213), (598, 214010), (1196, 107005), (1495, 85604), (2990, 42802), (5980, 21401)]