6446840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3931}}^1$

素因数の和:3983

約数の個数: 32

約数和(自身を含む): 14862960

約数和(自身を除く): 8416120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 3931, 7862, 15724, 19655, 31448, 39310, 78620, 157240, 161171, 322342, 644684, 805855, 1289368, 1611710, 3223420, 6446840]

約数ペア:

[(1, 6446840), (2, 3223420), (4, 1611710), (5, 1289368), (8, 805855), (10, 644684), (20, 322342), (40, 161171), (41, 157240), (82, 78620), (164, 39310), (205, 31448), (328, 19655), (410, 15724), (820, 7862), (1640, 3931)]