260781580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{1783}}^1$

素因数の和:1966

約数の個数: 48

約数和(自身を含む): 561060864

約数和(自身を除く): 300279284

約数列:

[1, 2, 4, 5, 10, 20, 71, 103, 142, 206, 284, 355, 412, 515, 710, 1030, 1420, 1783, 2060, 3566, 7132, 7313, 8915, 14626, 17830, 29252, 35660, 36565, 73130, 126593, 146260, 183649, 253186, 367298, 506372, 632965, 734596, 918245, 1265930, 1836490, 2531860, 3672980, 13039079, 26078158, 52156316, 65195395, 130390790, 260781580]

約数ペア:

[(1, 260781580), (2, 130390790), (4, 65195395), (5, 52156316), (10, 26078158), (20, 13039079), (71, 3672980), (103, 2531860), (142, 1836490), (206, 1265930), (284, 918245), (355, 734596), (412, 632965), (515, 506372), (710, 367298), (1030, 253186), (1420, 183649), (1783, 146260), (2060, 126593), (3566, 73130), (7132, 36565), (7313, 35660), (8915, 29252), (14626, 17830)]