18077156660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3943}}^1\times {\mathrm{5591}}^1$

素因数の和:9584

約数の個数: 48

約数和(自身を含む): 38904751872

約数和(自身を除く): 20827595212

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 3943, 5591, 7886, 11182, 15772, 19715, 22364, 27955, 39430, 55910, 78860, 111820, 161663, 229231, 323326, 458462, 646652, 808315, 916924, 1146155, 1616630, 2292310, 3233260, 4584620, 22045313, 44090626, 88181252, 110226565, 220453130, 440906260, 903857833, 1807715666, 3615431332, 4519289165, 9038578330, 18077156660]

約数ペア:

[(1, 18077156660), (2, 9038578330), (4, 4519289165), (5, 3615431332), (10, 1807715666), (20, 903857833), (41, 440906260), (82, 220453130), (164, 110226565), (205, 88181252), (410, 44090626), (820, 22045313), (3943, 4584620), (5591, 3233260), (7886, 2292310), (11182, 1616630), (15772, 1146155), (19715, 916924), (22364, 808315), (27955, 646652), (39430, 458462), (55910, 323326), (78860, 229231), (111820, 161663)]