30810680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18787}}^1$

素因数の和:18839

約数の個数: 32

約数和(自身を含む): 71018640

約数和(自身を除く): 40207960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18787, 37574, 75148, 93935, 150296, 187870, 375740, 751480, 770267, 1540534, 3081068, 3851335, 6162136, 7702670, 15405340, 30810680]

約数ペア:

[(1, 30810680), (2, 15405340), (4, 7702670), (5, 6162136), (8, 3851335), (10, 3081068), (20, 1540534), (40, 770267), (41, 751480), (82, 375740), (164, 187870), (205, 150296), (328, 93935), (410, 75148), (820, 37574), (1640, 18787)]