6466520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3943}}^1$

素因数の和:3995

約数の個数: 32

約数和(自身を含む): 14908320

約数和(自身を除く): 8441800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 3943, 7886, 15772, 19715, 31544, 39430, 78860, 157720, 161663, 323326, 646652, 808315, 1293304, 1616630, 3233260, 6466520]

約数ペア:

[(1, 6466520), (2, 3233260), (4, 1616630), (5, 1293304), (8, 808315), (10, 646652), (20, 323326), (40, 161663), (41, 157720), (82, 78860), (164, 39430), (205, 31544), (328, 19715), (410, 15772), (820, 7886), (1640, 3943)]