87959960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199909}}^1$

素因数の和:199931

約数の個数: 32

約数和(自身を含む): 215902800

約数和(自身を除く): 127942840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 199909, 399818, 799636, 999545, 1599272, 1999090, 2198999, 3998180, 4397998, 7996360, 8795996, 10994995, 17591992, 21989990, 43979980, 87959960]

約数ペア:

[(1, 87959960), (2, 43979980), (4, 21989990), (5, 17591992), (8, 10994995), (10, 8795996), (11, 7996360), (20, 4397998), (22, 3998180), (40, 2198999), (44, 1999090), (55, 1599272), (88, 999545), (110, 799636), (220, 399818), (440, 199909)]