51161180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5147}}^1$

素因数の和:5234

約数の個数: 48

約数和(自身を含む): 124540416

約数和(自身を除く): 73379236

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, 5147, 9940, 10294, 20588, 25735, 36029, 51470, 72058, 102940, 144116, 180145, 360290, 365437, 720580, 730874, 1461748, 1827185, 2558059, 3654370, 5116118, 7308740, 10232236, 12790295, 25580590, 51161180]

約数ペア:

[(1, 51161180), (2, 25580590), (4, 12790295), (5, 10232236), (7, 7308740), (10, 5116118), (14, 3654370), (20, 2558059), (28, 1827185), (35, 1461748), (70, 730874), (71, 720580), (140, 365437), (142, 360290), (284, 180145), (355, 144116), (497, 102940), (710, 72058), (994, 51470), (1420, 36029), (1988, 25735), (2485, 20588), (4970, 10294), (5147, 9940)]