28180990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1787}}^1$

素因数の和:1896

約数の個数: 32

約数和(自身を含む): 54069120

約数和(自身を除く): 25888130

約数列:

[1, 2, 5, 10, 19, 38, 83, 95, 166, 190, 415, 830, 1577, 1787, 3154, 3574, 7885, 8935, 15770, 17870, 33953, 67906, 148321, 169765, 296642, 339530, 741605, 1483210, 2818099, 5636198, 14090495, 28180990]

約数ペア:

[(1, 28180990), (2, 14090495), (5, 5636198), (10, 2818099), (19, 1483210), (38, 741605), (83, 339530), (95, 296642), (166, 169765), (190, 148321), (415, 67906), (830, 33953), (1577, 17870), (1787, 15770), (3154, 8935), (3574, 7885)]