81431080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{55021}}^1$

素因数の和:55069

約数の個数: 32

約数和(自身を含む): 188175240

約数和(自身を除く): 106744160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 55021, 110042, 220084, 275105, 440168, 550210, 1100420, 2035777, 2200840, 4071554, 8143108, 10178885, 16286216, 20357770, 40715540, 81431080]

約数ペア:

[(1, 81431080), (2, 40715540), (4, 20357770), (5, 16286216), (8, 10178885), (10, 8143108), (20, 4071554), (37, 2200840), (40, 2035777), (74, 1100420), (148, 550210), (185, 440168), (296, 275105), (370, 220084), (740, 110042), (1480, 55021)]