20799136

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 21875552

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 83, 164, 166, 191, 328, 332, 382, 656, 664, 764, 1312, 1328, 1528, 2656, 3056, 3403, 6112, 6806, 7831, 13612, 15662, 15853, 27224, 31324, 31706, 54448, 62648, 63412, 108896, 125296, 126824, 250592, 253648, 507296, 649973, 1299946, 2599892, 5199784, 10399568, 20799136]

約数ペア:

[(1, 20799136), (2, 10399568), (4, 5199784), (8, 2599892), (16, 1299946), (32, 649973), (41, 507296), (82, 253648), (83, 250592), (164, 126824), (166, 125296), (191, 108896), (328, 63412), (332, 62648), (382, 54448), (656, 31706), (664, 31324), (764, 27224), (1312, 15853), (1328, 15662), (1528, 13612), (2656, 7831), (3056, 6806), (3403, 6112)]